99664680 has 64 divisors (see below), whose sum is σ = 307088640. Its totient is φ = 25857792.

The previous prime is 99664661. The next prime is 99664729. The reversal of 99664680 is 8646699.

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, 6784 + ... + 15663.

It is an arithmetic number, because the mean of its divisors is an integer number (4798260).

Almost surely, 2^99664680 is an apocalyptic number.

It is an amenable number.

99664680 is an abundant number, since it is smaller than the sum of its proper divisors (207423960).

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

99664680 is a wasteful number, since it uses less digits than its factorization.

99664680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22498 (or 22494 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 99664680 is about 9983.2199214482. The cubic root of 99664680 is about 463.6394965361.

The spelling of 99664680 in words is "ninety-nine million, six hundred sixty-four thousand, six hundred eighty".