56766666765 has 8 divisors (see below), whose sum is σ = 90826666848. Its totient is φ = 30275555600.

The previous prime is 56766666709. The next prime is 56766666767.

56766666765 is nontrivially palindromic in base 10.

56766666765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56766666765 - 2⁷ = 56766666637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56766666696 and 56766666705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56766666767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1892222211 + ... + 1892222240.

It is an arithmetic number, because the mean of its divisors is an integer number (11353333356).

Almost surely, 2^56766666765 is an apocalyptic number.

It is an amenable number.

56766666765 is a deficient number, since it is larger than the sum of its proper divisors (34060000083).

56766666765 is a wasteful number, since it uses less digits than its factorization.

56766666765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784444459.

The product of its digits is 342921600, while the sum is 66.

The spelling of 56766666765 in words is "fifty-six billion, seven hundred sixty-six million, six hundred sixty-six thousand, seven hundred sixty-five".