55665056655 has 32 divisors (see below), whose sum is σ = 106572419520. Its totient is φ = 27404334720.

The previous prime is 55665056563. The next prime is 55665056663.

55665056655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55665056655 - 2²⁴ = 55648279439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15857236 + ... + 15860745.

It is an arithmetic number, because the mean of its divisors is an integer number (3330388110).

Almost surely, 2^55665056655 is an apocalyptic number.

55665056655 is a deficient number, since it is larger than the sum of its proper divisors (50907362865).

55665056655 is a wasteful number, since it uses less digits than its factorization.

55665056655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31718008 (or 31718002 counting only the distinct ones).

The product of its (nonzero) digits is 20250000, while the sum is 54.

The spelling of 55665056655 in words is "fifty-five billion, six hundred sixty-five million, fifty-six thousand, six hundred fifty-five".