656606056 has 16 divisors (see below), whose sum is σ = 1231712100. Its totient is φ = 328149504.

The previous prime is 656606053. The next prime is 656606077. The reversal of 656606056 is 650606656.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 446645956 + 209960100 = 21134^2 + 14490^2 .

It is a super-2 number, since 2×656606056² = 862263025551750272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (656606053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130 + ... + 36238.

Almost surely, 2^656606056 is an apocalyptic number.

It is an amenable number.

656606056 is a deficient number, since it is larger than the sum of its proper divisors (575106044).

656606056 is a wasteful number, since it uses less digits than its factorization.

656606056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38388 (or 38384 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 656606056 is about 25624.3254740491. The cubic root of 656606056 is about 869.1637959994.

The spelling of 656606056 in words is "six hundred fifty-six million, six hundred six thousand, fifty-six".