56172228336 has 60 divisors (see below), whose sum is σ = 179661971632. Its totient is φ = 16049207808.

The previous prime is 56172228319. The next prime is 56172228341. The reversal of 56172228336 is 63382227165.

56172228336 is a `hidden beast` number, since 5 + 617 + 2 + 2 + 28 + 3 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 56172228291 and 56172228300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27862201 + ... + 27864216.

Almost surely, 2^56172228336 is an apocalyptic number.

56172228336 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56172228336 is an abundant number, since it is smaller than the sum of its proper divisors (123489743296).

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

56172228336 is a wasteful number, since it uses less digits than its factorization.

56172228336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55726438 (or 55726429 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 56172228336 in words is "fifty-six billion, one hundred seventy-two million, two hundred twenty-eight thousand, three hundred thirty-six".