656338468 has 6 divisors (see below), whose sum is σ = 1148592326. Its totient is φ = 328169232.

The previous prime is 656338447. The next prime is 656338471. The reversal of 656338468 is 864833656.

It can be written as a sum of positive squares in only one way, i.e., 457189924 + 199148544 = 21382^2 + 14112^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82042305 + ... + 82042312.

Almost surely, 2^656338468 is an apocalyptic number.

It is an amenable number.

656338468 is a deficient number, since it is larger than the sum of its proper divisors (492253858).

656338468 is a wasteful number, since it uses less digits than its factorization.

656338468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164084621 (or 164084619 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 49.

The square root of 656338468 is about 25619.1035752620. The cubic root of 656338468 is about 869.0457092607.

The spelling of 656338468 in words is "six hundred fifty-six million, three hundred thirty-eight thousand, four hundred sixty-eight".