If you stacked them they would be about fifty thousand Popocatépetls high, give or take a few zeroes. UPDATE: as sibling pointed out indirectly, it's eight tho

If you stacked them they would be about fifty thousand Popocatépetls high, give or take a few zeroes. UPDATE: as sibling pointed out indirectly, it's eight thousand Popocatépetls [0]. [0]: https://www.wolframalpha.com/input?i=449.5+*10%5E9+*+%28thickness+of+a+sheet+of+paper%29+%2F+%28height+of+Popocat%C3%A9petl%29 https://www.wolframalpha.com/input?i=449.5+*10%5E9+*+%28thic...