99660604054536 has 96 divisors (see below), whose sum is σ = 314768671776000. Its totient is φ = 28474458294240.

The previous prime is 99660604054471. The next prime is 99660604054559. The reversal of 99660604054536 is 63545040606699.

It is a happy number.

99660604054536 is a `hidden beast` number, since 9 + 9 + 6 + 6 + 0 + 6 + 0 + 40 + 54 + 536 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2017723200 + ... + 2017772591.

It is an arithmetic number, because the mean of its divisors is an integer number (3278840331000).

Almost surely, 2^{99660604054536} is an apocalyptic number.

It is an amenable number.

99660604054536 is an abundant number, since it is smaller than the sum of its proper divisors (215108067721464).

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

99660604054536 is a wasteful number, since it uses less digits than its factorization.

99660604054536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035495824 (or 4035495803 counting only the distinct ones).

The product of its (nonzero) digits is 125971200, while the sum is 63.

The spelling of 99660604054536 in words is "ninety-nine trillion, six hundred sixty billion, six hundred four million, fifty-four thousand, five hundred thirty-six".