56165953760 has 192 divisors, whose sum is σ = 158529208320. Its totient is φ = 18398914560.

The previous prime is 56165953709. The next prime is 56165953813. The reversal of 56165953760 is 6735956165.

It is a super-2 number, since 2×56165953760² (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 31 ways as a sum of consecutive naturals, for example, 2732642 + ... + 2753118.

It is an arithmetic number, because the mean of its divisors is an integer number (825672960).

Almost surely, 2^56165953760 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 56165953760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79264604160).

56165953760 is an abundant number, since it is smaller than the sum of its proper divisors (102363254560).

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

56165953760 is a wasteful number, since it uses less digits than its factorization.

56165953760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20609 (or 20601 counting only the distinct ones).

The product of its (nonzero) digits is 5103000, while the sum is 53.

The spelling of 56165953760 in words is "fifty-six billion, one hundred sixty-five million, nine hundred fifty-three thousand, seven hundred sixty".