56666207117 has 16 divisors (see below), whose sum is σ = 64635278400. Its totient is φ = 49214813952.

The previous prime is 56666207113. The next prime is 56666207141. The reversal of 56666207117 is 71170266665.

56666207117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56666207117 - 2² = 56666207113 is a prime.

It is a super-2 number, since 2×56666207117² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56666207113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690218 + ... + 767940.

It is an arithmetic number, because the mean of its divisors is an integer number (4039704900).

Almost surely, 2^56666207117 is an apocalyptic number.

It is an amenable number.

56666207117 is a deficient number, since it is larger than the sum of its proper divisors (7969071283).

56666207117 is a wasteful number, since it uses less digits than its factorization.

56666207117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81052.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 56666207117 in words is "fifty-six billion, six hundred sixty-six million, two hundred seven thousand, one hundred seventeen".