99091506372 has 48 divisors (see below), whose sum is σ = 241312186752. Its totient is φ = 31588381440.

The previous prime is 99091506347. The next prime is 99091506427. The reversal of 99091506372 is 27360519099.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1552122 + ... + 1614702.

It is an arithmetic number, because the mean of its divisors is an integer number (5027337224).

Almost surely, 2^99091506372 is an apocalyptic number.

99091506372 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

99091506372 is an abundant number, since it is smaller than the sum of its proper divisors (142220680380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99091506372 is a wasteful number, since it uses less digits than its factorization.

99091506372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68348 (or 68346 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 51.

The spelling of 99091506372 in words is "ninety-nine billion, ninety-one million, five hundred six thousand, three hundred seventy-two".