656630214664 has 32 divisors (see below), whose sum is σ = 1285096792320. Its totient is φ = 313946303616.

The previous prime is 656630214659. The next prime is 656630214671. The reversal of 656630214664 is 466412036656.

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, 81364 + ... + 1148860.

It is an arithmetic number, because the mean of its divisors is an integer number (40159274760).

Almost surely, 2^656630214664 is an apocalyptic number.

It is an amenable number.

656630214664 is a deficient number, since it is larger than the sum of its proper divisors (628466577656).

656630214664 is a wasteful number, since it uses less digits than its factorization.

656630214664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070869 (or 1070865 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 656630214664 in words is "six hundred fifty-six billion, six hundred thirty million, two hundred fourteen thousand, six hundred sixty-four".