55665456655 has 8 divisors (see below), whose sum is σ = 68058898272. Its totient is φ = 43692131808.

The previous prime is 55665456643. The next prime is 55665456661.

It is a happy number.

55665456655 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 55665456655 - 2³³ = 47075522063 is a prime.

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 55665456655.

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 7 ways as a sum of consecutive naturals, for example, 105028899 + ... + 105029428.

It is an arithmetic number, because the mean of its divisors is an integer number (8507362284).

Almost surely, 2^55665456655 is an apocalyptic number.

55665456655 is a deficient number, since it is larger than the sum of its proper divisors (12393441617).

55665456655 is a wasteful number, since it uses less digits than its factorization.

55665456655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210058385.

The product of its digits is 81000000, while the sum is 58.

The spelling of 55665456655 in words is "fifty-five billion, six hundred sixty-five million, four hundred fifty-six thousand, six hundred fifty-five".