531676535656 has 24 divisors (see below), whose sum is σ = 1159651628370. Its totient is φ = 227861372256.

The previous prime is 531676535629. The next prime is 531676535669. The reversal of 531676535656 is 656535676135.

It can be written as a sum of positive squares in only one way, i.e., 474156188100 + 57520347556 = 688590^2 + 239834^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 531676535656.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678158455 + ... + 678159238.

Almost surely, 2^531676535656 is an apocalyptic number.

531676535656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

531676535656 is an abundant number, since it is smaller than the sum of its proper divisors (627975092714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531676535656 is a wasteful number, since it uses less digits than its factorization.

531676535656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356317713 (or 1356317702 counting only the distinct ones).

The product of its digits is 51030000, while the sum is 58.

The spelling of 531676535656 in words is "five hundred thirty-one billion, six hundred seventy-six million, five hundred thirty-five thousand, six hundred fifty-six".