11656620868 has 12 divisors (see below), whose sum is σ = 21057121792. Its totient is φ = 5640300360.

The previous prime is 11656620851. The next prime is 11656620887. The reversal of 11656620868 is 86802665611.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47002380 + ... + 47002627.

Almost surely, 2^11656620868 is an apocalyptic number.

It is an amenable number.

11656620868 is a deficient number, since it is larger than the sum of its proper divisors (9400500924).

11656620868 is a wasteful number, since it uses less digits than its factorization.

11656620868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94005042 (or 94005040 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 11656620868 in words is "eleven billion, six hundred fifty-six million, six hundred twenty thousand, eight hundred sixty-eight".