It's about 300,000 times the number of Escalators in the State of Wyoming.
In other words, the count of Escalators in the State of Wyoming is 0.000003 times 660,000.(2013 figures)
There are only two escalators in the State of Wyoming (although there are apparently plenty of elevators). It is speculated that the lack of escalators is due to the older age of the buildings and the abundance of cheap land resulting in single-story structures. At the time the last count of escalators was made, the state had a population of just 576,000 people.
It's about one-four-hundred-fifty-thousandth the number of Emails Sent per Day.
In other words, 660,000 is 0.00000224 times the count of Emails Sent per Day, and the count of Emails Sent per Day is 446,000 times that amount.(2010 figures) (estimated averages)
Each day, human computer users and automated programs send about 294 billion emails. Of those, an estimated 214 billion emails are spam advertisements for pharmaceuticals or drugs.