99696601688 has 32 divisors (see below), whose sum is σ = 195185052000. Its totient is φ = 47650065408.

The previous prime is 99696601673. The next prime is 99696601699. The reversal of 99696601688 is 88610669699.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110120 + ... + 459912.

It is an arithmetic number, because the mean of its divisors is an integer number (6099532875).

Almost surely, 2^99696601688 is an apocalyptic number.

It is an amenable number.

99696601688 is a deficient number, since it is larger than the sum of its proper divisors (95488450312).

99696601688 is a wasteful number, since it uses less digits than its factorization.

99696601688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351371 (or 351367 counting only the distinct ones).

The product of its (nonzero) digits is 60466176, while the sum is 68.

The spelling of 99696601688 in words is "ninety-nine billion, six hundred ninety-six million, six hundred one thousand, six hundred eighty-eight".