55101120155 has 4 divisors (see below), whose sum is σ = 66121344192. Its totient is φ = 44080896120.

The previous prime is 55101120133. The next prime is 55101120161. The reversal of 55101120155 is 55102110155.

55101120155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55101120155 - 2⁶ = 55101120091 is a prime.

It is a super-2 number, since 2×55101120155² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5510112011 + ... + 5510112020.

It is an arithmetic number, because the mean of its divisors is an integer number (16530336048).

Almost surely, 2^55101120155 is an apocalyptic number.

55101120155 is a deficient number, since it is larger than the sum of its proper divisors (11020224037).

55101120155 is a wasteful number, since it uses less digits than its factorization.

55101120155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11020224036.

The product of its (nonzero) digits is 1250, while the sum is 26.

The spelling of 55101120155 in words is "fifty-five billion, one hundred one million, one hundred twenty thousand, one hundred fifty-five".