55179697155 has 48 divisors (see below), whose sum is σ = 97083071232. Its totient is φ = 26742830400.

The previous prime is 55179697147. The next prime is 55179697189.

55179697155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55179697155 - 2³ = 55179697147 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6041202 + ... + 6050328.

It is an arithmetic number, because the mean of its divisors is an integer number (2022563984).

Almost surely, 2^55179697155 is an apocalyptic number.

55179697155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55179697155 is a deficient number, since it is larger than the sum of its proper divisors (41903374077).

55179697155 is a wasteful number, since it uses less digits than its factorization.

55179697155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12488 (or 12477 counting only the distinct ones).

The product of its digits is 14883750, while the sum is 60.

The spelling of 55179697155 in words is "fifty-five billion, one hundred seventy-nine million, six hundred ninety-seven thousand, one hundred fifty-five".