56001505656156 has 24 divisors (see below), whose sum is σ = 138356661033360. Its totient is φ = 17569099813632.

The previous prime is 56001505656149. The next prime is 56001505656179. The reversal of 56001505656156 is 65165650510065.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 56001505656099 and 56001505656108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137258592091 + ... + 137258592498.

It is an arithmetic number, because the mean of its divisors is an integer number (5764860876390).

Almost surely, 2^{56001505656156} is an apocalyptic number.

It is an amenable number.

56001505656156 is an abundant number, since it is smaller than the sum of its proper divisors (82355155377204).

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

56001505656156 is a wasteful number, since it uses less digits than its factorization.

56001505656156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274517184613 (or 274517184611 counting only the distinct ones).

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

The spelling of 56001505656156 in words is "fifty-six trillion, one billion, five hundred five million, six hundred fifty-six thousand, one hundred fifty-six".