99261122604 has 48 divisors (see below), whose sum is σ = 270098304000. Its totient is φ = 28360319568.

The previous prime is 99261122573. The next prime is 99261122617. The reversal of 99261122604 is 40622116299.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 12053844 + ... + 12062075.

It is an arithmetic number, because the mean of its divisors is an integer number (5627048000).

Almost surely, 2^99261122604 is an apocalyptic number.

It is an amenable number.

99261122604 is an abundant number, since it is smaller than the sum of its proper divisors (170837181396).

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

99261122604 is a wasteful number, since it uses less digits than its factorization.

99261122604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24115947 (or 24115931 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 99261122604 in words is "ninety-nine billion, two hundred sixty-one million, one hundred twenty-two thousand, six hundred four".