56173828320 has 192 divisors, whose sum is σ = 206956512000. Its totient is φ = 14191262208.

The previous prime is 56173828289. The next prime is 56173828357. The reversal of 56173828320 is 2382837165.

56173828320 is a `hidden beast` number, since 5 + 617 + 3 + 8 + 2 + 8 + 3 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260110 + ... + 424269.

It is an arithmetic number, because the mean of its divisors is an integer number (1077898500).

Almost surely, 2^56173828320 is an apocalyptic number.

It is an amenable number.

56173828320 is an abundant number, since it is smaller than the sum of its proper divisors (150782683680).

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

56173828320 is a wasteful number, since it uses less digits than its factorization.

56173828320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684422 (or 684408 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 56173828320 in words is "fifty-six billion, one hundred seventy-three million, eight hundred twenty-eight thousand, three hundred twenty".