It's about 350 times the number of Countries in Africa.
In other words, the count of Countries in Africa is 0.003 times 18,000.(2016 figures) (sovereign states recognized by the UN only)
The continent of Africa includes 54 sovereign countries recognized by the United Nations as of 2016. It is the second-most populous continent in the world, with 1.1 billion inhabitants.
It's about 400 times the number of Teeth in a Great White Shark's Mouth.
In other words, 18,000 is 380 times the count of Teeth in a Great White Shark's Mouth, and the count of Teeth in a Great White Shark's Mouth is 0.0026 times that amount.(Carcharodon carcharias) (average; including developing rows)
A Great White Shark has 48 exposed teeth on their upper and lower jaws. Behind these exposed teeth are developing teeth — up to 300 in about 5 rows. The sharks will continuously lose and replace the exposed teeth throughout their lives.
It's about 650 times the number of Countries in the European Union.
In other words, the count of Countries in the European Union is 0.0016 times 18,000.(a.k.a. EU) (2016 figures)
There are 28 member countries in the European Union, the latest member of which is Croatia. The EU is largely urban, with sixteen cities having a population of one million or more, and 75% of the population living in an urban area.
It's about one-one-thousandth the number of VIsitors to Walt Disney World Each Year.
In other words, 18,000 is 0.00096837 times the count of VIsitors to Walt Disney World Each Year, and the count of VIsitors to Walt Disney World Each Year is 1,032.7 times that amount.(a.k.a. Walk Disney World Resort, a.k.a. Walt Disney World, a.k.a. WDW) (Lake Buena Vista and Bay Lake, Florida) (2013 figures) (for The Magic Kingdom; approximate; annual attendance totals)
Each year, Walt Disney World, Florida attracts 18,588,000 visitors. Disney World employees over 70,000 people and is the largest single-site employer in the United States.
It's about 1,000 times the number of Living Kings and Queens.
In other words, 18,000 is 1,200 times the count of Living Kings and Queens, and the count of Living Kings and Queens is 0.00083 times that amount.(2015 figures) (distinct Monarchs)
As of 2015, the world has fifteen Kings and Queens reigning over 45 countries. Of all these, Queen Elizabeth the II is the only reigning Queen; she has monarchical authority over the sixteen of the Commonwealth nations.
It's about one-one-thousand-five-hundredth the number of Books in the Library of Congress (2013).
In other words, 18,000 is 0.00076296836 times the count of Books in the Library of Congress (2013), and the count of Books in the Library of Congress (2013) is 1,310.6703 times that amount.(2013 figures) (total of books only)
As of September, 2013, The Library of Congress had 23,592,066 books in its catalog and a total of 158,007,115 physical items.
It's about 2,000 times the number of Symohonies Composed by Beethoven.
In other words, the count of Symohonies Composed by Beethoven is 0.0005 times 18,000.(a.k.a. Ludwig van Beethoven)
Over the course of his life, Beethoven composed nine symphonies over the course of a twenty-four year period. After his death in early 1827, an estimated 20,000 Austrian citizens attended his public funeral.