55151330155 has 12 divisors (see below), whose sum is σ = 67453883280. Its totient is φ = 43288580192.

The previous prime is 55151330149. The next prime is 55151330173. The reversal of 55151330155 is 55103315155.

It is not a de Polignac number, because 55151330155 - 2²⁹ = 54614459243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55151330155.

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 11 ways as a sum of consecutive naturals, for example, 1949335 + ... + 1977424.

It is an arithmetic number, because the mean of its divisors is an integer number (5621156940).

Almost surely, 2^55151330155 is an apocalyptic number.

55151330155 is a deficient number, since it is larger than the sum of its proper divisors (12302553125).

55151330155 is an equidigital number, since it uses as much as digits as its factorization.

55151330155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926870 (or 3926817 counting only the distinct ones).

The product of its (nonzero) digits is 28125, while the sum is 34.

The spelling of 55151330155 in words is "fifty-five billion, one hundred fifty-one million, three hundred thirty thousand, one hundred fifty-five".