56161764318 has 16 divisors (see below), whose sum is σ = 122534758656. Its totient is φ = 17018716440.

The previous prime is 56161764313. The next prime is 56161764361. The reversal of 56161764318 is 81346716165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56161764313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425467846 + ... + 425467977.

It is an arithmetic number, because the mean of its divisors is an integer number (7658422416).

Almost surely, 2^56161764318 is an apocalyptic number.

56161764318 is an abundant number, since it is smaller than the sum of its proper divisors (66372994338).

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

56161764318 is a wasteful number, since it uses less digits than its factorization.

56161764318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850935839.

The product of its digits is 725760, while the sum is 48.

The spelling of 56161764318 in words is "fifty-six billion, one hundred sixty-one million, seven hundred sixty-four thousand, three hundred eighteen".