56613315616 has 96 divisors (see below), whose sum is σ = 134137213056. Its totient is φ = 23174400000.

The previous prime is 56613315593. The next prime is 56613315631. The reversal of 56613315616 is 61651331665.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36741 + ... + 338491.

It is an arithmetic number, because the mean of its divisors is an integer number (1397262636).

Almost surely, 2^56613315616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56613315616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67068606528).

56613315616 is an abundant number, since it is smaller than the sum of its proper divisors (77523897440).

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

56613315616 is a wasteful number, since it uses less digits than its factorization.

56613315616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301826 (or 301818 counting only the distinct ones).

The product of its digits is 291600, while the sum is 43.

The spelling of 56613315616 in words is "fifty-six billion, six hundred thirteen million, three hundred fifteen thousand, six hundred sixteen".