56610663536 has 60 divisors (see below), whose sum is σ = 128906155728. Its totient is φ = 24011559936.

The previous prime is 56610663523. The next prime is 56610663581. The reversal of 56610663536 is 63536601665.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 296156 + ... + 448251.

Almost surely, 2^56610663536 is an apocalyptic number.

56610663536 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56610663536 is an abundant number, since it is smaller than the sum of its proper divisors (72295492192).

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

56610663536 is a wasteful number, since it uses less digits than its factorization.

56610663536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744526 (or 744513 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 47.

The spelling of 56610663536 in words is "fifty-six billion, six hundred ten million, six hundred sixty-three thousand, five hundred thirty-six".