56666711365375 has 8 divisors (see below), whose sum is σ = 70720055784144. Its totient is φ = 45333369092200.

The previous prime is 56666711365333. The next prime is 56666711365399. The reversal of 56666711365375 is 57356311766665.

It is not a de Polignac number, because 56666711365375 - 2²¹ = 56666709268223 is a prime.

It is a super-2 number, since 2×56666711365375² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56666711365375.

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, 226666845337 + ... + 226666845586.

It is an arithmetic number, because the mean of its divisors is an integer number (8840006973018).

Almost surely, 2^{56666711365375} is an apocalyptic number.

56666711365375 is a deficient number, since it is larger than the sum of its proper divisors (14053344418769).

56666711365375 is an equidigital number, since it uses as much as digits as its factorization.

56666711365375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453333690938 (or 453333690928 counting only the distinct ones).

The product of its digits is 428652000, while the sum is 67.

The spelling of 56666711365375 in words is "fifty-six trillion, six hundred sixty-six billion, seven hundred eleven million, three hundred sixty-five thousand, three hundred seventy-five".