Danny Moloshok/Reuters
Bezos has four times as much money as his alma mater, Princeton University.
It's hard to overstate the immensity of a $90 billion fortune.
On Friday, Amazon CEO Jeff Bezos became the richest person in the world after third-quarter earnings sent the company's stock soaring.
In addition to founding the online
Below, check out seven mind-blowing facts about Bezos and his billions.