56100065165181 has 40 divisors (see below), whose sum is σ = 84385432060160. Its totient is φ = 37141292760768.

The previous prime is 56100065165149. The next prime is 56100065165203. The reversal of 56100065165181 is 18156156000165.

56100065165181 is a `hidden beast` number, since 5 + 6 + 1 + 0 + 0 + 0 + 6 + 516 + 51 + 81 = 666.

It is not a de Polignac number, because 56100065165181 - 2⁵ = 56100065165149 is a prime.

It is a super-2 number, since 2×56100065165181² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56100065115181) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3590946 + ... + 11184588.

It is an arithmetic number, because the mean of its divisors is an integer number (2109635801504).

Almost surely, 2^{56100065165181} is an apocalyptic number.

It is an amenable number.

56100065165181 is a deficient number, since it is larger than the sum of its proper divisors (28285366894979).

56100065165181 is a wasteful number, since it uses less digits than its factorization.

56100065165181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7594287 (or 7594278 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 45.

The spelling of 56100065165181 in words is "fifty-six trillion, one hundred billion, sixty-five million, one hundred sixty-five thousand, one hundred eighty-one".