55108544580155 has 64 divisors (see below), whose sum is σ = 78745141440000. Its totient is φ = 36572726615040.

The previous prime is 55108544580151. The next prime is 55108544580157.

55108544580155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55108544580155 - 2² = 55108544580151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55108544580155.

It is not an unprimeable number, because it can be changed into a prime (55108544580151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10527791 + ... + 14867799.

It is an arithmetic number, because the mean of its divisors is an integer number (1230392835000).

Almost surely, 2^{55108544580155} is an apocalyptic number.

55108544580155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55108544580155 is a deficient number, since it is larger than the sum of its proper divisors (23636596859845).

55108544580155 is a wasteful number, since it uses less digits than its factorization.

55108544580155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340492.

The product of its (nonzero) digits is 16000000, while the sum is 56.

The spelling of 55108544580155 in words is "fifty-five trillion, one hundred eight billion, five hundred forty-four million, five hundred eighty thousand, one hundred fifty-five".