55120133102155 has 16 divisors (see below), whose sum is σ = 76401810162144. Its totient is φ = 37729288967680.

The previous prime is 55120133102123. The next prime is 55120133102197.

It is a happy number.

55120133102155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55120133102155 - 2⁵ = 55120133102123 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 55120133102155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29476006072 + ... + 29476007941.

It is an arithmetic number, because the mean of its divisors is an integer number (4775113135134).

Almost surely, 2^{55120133102155} is an apocalyptic number.

55120133102155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55120133102155 is a deficient number, since it is larger than the sum of its proper divisors (21281677059989).

55120133102155 is a wasteful number, since it uses less digits than its factorization.

55120133102155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58952014046.

The product of its (nonzero) digits is 22500, while the sum is 34.

It can be divided in two parts, 5512013 and 3102155, that added together give a palindrome (8614168).

The spelling of 55120133102155 in words is "fifty-five trillion, one hundred twenty billion, one hundred thirty-three million, one hundred two thousand, one hundred fifty-five".