56667900736 has 56 divisors (see below), whose sum is σ = 113928351264. Its totient is φ = 27962288640.

The previous prime is 56667900701. The next prime is 56667900763. The reversal of 56667900736 is 63700976665.

It is a super-2 number, since 2×56667900736² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5375791 + ... + 5386321.

It is an arithmetic number, because the mean of its divisors is an integer number (2034434844).

Almost surely, 2^56667900736 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 56667900736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56964175632).

56667900736 is an abundant number, since it is smaller than the sum of its proper divisors (57260450528).

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

56667900736 is a wasteful number, since it uses less digits than its factorization.

56667900736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11639 (or 11629 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 55.

The spelling of 56667900736 in words is "fifty-six billion, six hundred sixty-seven million, nine hundred thousand, seven hundred thirty-six".