55664706775 has 12 divisors (see below), whose sum is σ = 70707755664. Its totient is φ = 43445624000.

The previous prime is 55664706751. The next prime is 55664706787. The reversal of 55664706775 is 57760746655.

55664706775 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 55664706775 - 2¹⁵ = 55664674007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27152491 + ... + 27154540.

It is an arithmetic number, because the mean of its divisors is an integer number (5892312972).

Almost surely, 2^55664706775 is an apocalyptic number.

55664706775 is a deficient number, since it is larger than the sum of its proper divisors (15043048889).

55664706775 is a wasteful number, since it uses less digits than its factorization.

55664706775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54307082 (or 54307077 counting only the distinct ones).

The product of its (nonzero) digits is 37044000, while the sum is 58.

The spelling of 55664706775 in words is "fifty-five billion, six hundred sixty-four million, seven hundred six thousand, seven hundred seventy-five".