56051601605556 has 12 divisors (see below), whose sum is σ = 130787070412992. Its totient is φ = 18683867201848.

The previous prime is 56051601605507. The next prime is 56051601605567. The reversal of 56051601605556 is 65550610615065.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 56051601605499 and 56051601605508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2335483400220 + ... + 2335483400243.

It is an arithmetic number, because the mean of its divisors is an integer number (10898922534416).

Almost surely, 2^{56051601605556} is an apocalyptic number.

It is an amenable number.

56051601605556 is an abundant number, since it is smaller than the sum of its proper divisors (74735468807436).

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

56051601605556 is a wasteful number, since it uses less digits than its factorization.

56051601605556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4670966800470 (or 4670966800468 counting only the distinct ones).

The product of its (nonzero) digits is 4050000, while the sum is 51.

The spelling of 56051601605556 in words is "fifty-six trillion, fifty-one billion, six hundred one million, six hundred five thousand, five hundred fifty-six".