56766510167677 has 4 divisors (see below), whose sum is σ = 56766540421276. Its totient is φ = 56766479914080.

The previous prime is 56766510167617. The next prime is 56766510167681. The reversal of 56766510167677 is 77676101566765.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13460489673316 + 43306020494361 = 3668854^2 + 6580731^2 .

It is a cyclic number.

It is not a de Polignac number, because 56766510167677 - 2²⁷ = 56766375949949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56766510167617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12111978 + ... + 16131739.

It is an arithmetic number, because the mean of its divisors is an integer number (14191635105319).

Almost surely, 2^{56766510167677} is an apocalyptic number.

It is an amenable number.

56766510167677 is a deficient number, since it is larger than the sum of its proper divisors (30253599).

56766510167677 is a wasteful number, since it uses less digits than its factorization.

56766510167677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30253598.

The product of its (nonzero) digits is 466754400, while the sum is 70.

The spelling of 56766510167677 in words is "fifty-six trillion, seven hundred sixty-six billion, five hundred ten million, one hundred sixty-seven thousand, six hundred seventy-seven".