99688599756 has 36 divisors (see below), whose sum is σ = 256261660200. Its totient is φ = 32666320128.

The previous prime is 99688599727. The next prime is 99688599793. The reversal of 99688599756 is 65799588699.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23465061 + ... + 23469308.

It is an arithmetic number, because the mean of its divisors is an integer number (7118379450).

Almost surely, 2^99688599756 is an apocalyptic number.

It is an amenable number.

99688599756 is an abundant number, since it is smaller than the sum of its proper divisors (156573060444).

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

99688599756 is a wasteful number, since it uses less digits than its factorization.

99688599756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46934438 (or 46934433 counting only the distinct ones).

The product of its digits is 2645395200, while the sum is 81.

The spelling of 99688599756 in words is "ninety-nine billion, six hundred eighty-eight million, five hundred ninety-nine thousand, seven hundred fifty-six".