656506016 has 12 divisors (see below), whose sum is σ = 1292496282. Its totient is φ = 328252992.

The previous prime is 656506001. The next prime is 656506027. The reversal of 656506016 is 610605656.

It can be written as a sum of positive squares in only one way, i.e., 528816016 + 127690000 = 22996^2 + 11300^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10257875 + ... + 10257938.

Almost surely, 2^656506016 is an apocalyptic number.

It is an amenable number.

656506016 is a deficient number, since it is larger than the sum of its proper divisors (635990266).

656506016 is a wasteful number, since it uses less digits than its factorization.

656506016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20515823 (or 20515815 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 656506016 is about 25622.3733483064. The cubic root of 656506016 is about 869.1196520454.

The spelling of 656506016 in words is "six hundred fifty-six million, five hundred six thousand, sixteen".