56820076218 has 12 divisors (see below), whose sum is σ = 123110165178. Its totient is φ = 18940025400.

The previous prime is 56820076207. The next prime is 56820076219. The reversal of 56820076218 is 81267002865.

56820076218 is a `hidden beast` number, since 568 + 2 + 0 + 0 + 76 + 2 + 18 = 666.

It can be written as a sum of positive squares in only one way, i.e., 39765544569 + 17054531649 = 199413^2 + 130593^2 .

It is a super-2 number, since 2×56820076218² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56820076219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1578335433 + ... + 1578335468.

Almost surely, 2^56820076218 is an apocalyptic number.

56820076218 is an abundant number, since it is smaller than the sum of its proper divisors (66290088960).

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

56820076218 is a wasteful number, since it uses less digits than its factorization.

56820076218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156670909 (or 3156670906 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

It can be divided in two parts, 5682007 and 6218, that added together give a square (5688225 = 2385²).

The spelling of 56820076218 in words is "fifty-six billion, eight hundred twenty million, seventy-six thousand, two hundred eighteen".