56516729960238 has 64 divisors (see below), whose sum is σ = 121880497139712. Its totient is φ = 17420242371840.

The previous prime is 56516729960191. The next prime is 56516729960323. The reversal of 56516729960238 is 83206992761565.

It is a super-2 number, since 2×56516729960238² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (69).

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, 2854345 + ... + 11008212.

It is an arithmetic number, because the mean of its divisors is an integer number (1904382767808).

Almost surely, 2^{56516729960238} is an apocalyptic number.

56516729960238 is an abundant number, since it is smaller than the sum of its proper divisors (65363767179474).

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

56516729960238 is a wasteful number, since it uses less digits than its factorization.

56516729960238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13863569.

The product of its (nonzero) digits is 293932800, while the sum is 69.

The spelling of 56516729960238 in words is "fifty-six trillion, five hundred sixteen billion, seven hundred twenty-nine million, nine hundred sixty thousand, two hundred thirty-eight".