55611655155 has 48 divisors (see below), whose sum is σ = 110649487104. Its totient is φ = 25310445120.

The previous prime is 55611655111. The next prime is 55611655171. The reversal of 55611655155 is 55155611655.

It is not a de Polignac number, because 55611655155 - 2⁸ = 55611654899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55611655155.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 317361 + ... + 460370.

It is an arithmetic number, because the mean of its divisors is an integer number (2305197648).

Almost surely, 2^55611655155 is an apocalyptic number.

55611655155 is a deficient number, since it is larger than the sum of its proper divisors (55037831949).

55611655155 is a wasteful number, since it uses less digits than its factorization.

55611655155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777976 (or 777973 counting only the distinct ones).

The product of its digits is 562500, while the sum is 45.

The spelling of 55611655155 in words is "fifty-five billion, six hundred eleven million, six hundred fifty-five thousand, one hundred fifty-five".