656655028 has 12 divisors (see below), whose sum is σ = 1151043712. Its totient is φ = 327785400.

The previous prime is 656655011. The next prime is 656655049. The reversal of 656655028 is 820556656.

It is a congruent number.

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, 132798 + ... + 137653.

Almost surely, 2^656655028 is an apocalyptic number.

It is an amenable number.

656655028 is a deficient number, since it is larger than the sum of its proper divisors (494388684).

656655028 is a wasteful number, since it uses less digits than its factorization.

656655028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271062 (or 271060 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The square root of 656655028 is about 25625.2810326053. The cubic root of 656655028 is about 869.1854038980.

The spelling of 656655028 in words is "six hundred fifty-six million, six hundred fifty-five thousand, twenty-eight".