55115101511155 has 32 divisors (see below), whose sum is σ = 75775778588160. Its totient is φ = 37698556980480.

The previous prime is 55115101511147. The next prime is 55115101511161. The reversal of 55115101511155 is 55111510151155.

It is not a de Polignac number, because 55115101511155 - 2³ = 55115101511147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126297135 + ... + 126732775.

It is an arithmetic number, because the mean of its divisors is an integer number (2367993080880).

Almost surely, 2^{55115101511155} is an apocalyptic number.

55115101511155 is a deficient number, since it is larger than the sum of its proper divisors (20660677077005).

55115101511155 is a wasteful number, since it uses less digits than its factorization.

55115101511155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444699.

The product of its (nonzero) digits is 15625, while the sum is 37.

The spelling of 55115101511155 in words is "fifty-five trillion, one hundred fifteen billion, one hundred one million, five hundred eleven thousand, one hundred fifty-five".