99 (number) - Wikipedia
https://en.wikipedia.org/wiki/99_(number)
WEB99 is: a composite number; a square-prime, of the form ( p2, q). It is the 11th composite number of this form and the third of the form (3 2, q). It has an aliquot sum of 57, within an aliquot sequence of two composite numbers (99, 57, 23, 1 ,0), to the Prime in the 23-aliquot tree. a Kaprekar number [1]
DA: 14 PA: 60 MOZ Rank: 88