11656656166456 has 32 divisors (see below), whose sum is σ = 26064572797440. Its totient is φ = 4778505011808.

The previous prime is 11656656166451. The next prime is 11656656166457. The reversal of 11656656166456 is 65466165665611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11656656166451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4525098156 + ... + 4525100731.

It is an arithmetic number, because the mean of its divisors is an integer number (814517899920).

Almost surely, 2^{11656656166456} is an apocalyptic number.

It is an amenable number.

11656656166456 is an abundant number, since it is smaller than the sum of its proper divisors (14407916630984).

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

11656656166456 is a wasteful number, since it uses less digits than its factorization.

11656656166456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9050198923 (or 9050198919 counting only the distinct ones).

The product of its digits is 139968000, while the sum is 64.

The spelling of 11656656166456 in words is "eleven trillion, six hundred fifty-six billion, six hundred fifty-six million, one hundred sixty-six thousand, four hundred fifty-six".