56156871072 has 24 divisors (see below), whose sum is σ = 147411786816. Its totient is φ = 18718956992.

The previous prime is 56156871061. The next prime is 56156871073. The reversal of 56156871072 is 27017865165.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (56156871073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292483608 + ... + 292483799.

It is an arithmetic number, because the mean of its divisors is an integer number (6142157784).

Almost surely, 2^56156871072 is an apocalyptic number.

It is an amenable number.

56156871072 is an abundant number, since it is smaller than the sum of its proper divisors (91254915744).

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

56156871072 is a wasteful number, since it uses less digits than its factorization.

56156871072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584967420 (or 584967412 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 48.

The spelling of 56156871072 in words is "fifty-six billion, one hundred fifty-six million, eight hundred seventy-one thousand, seventy-two".