55144444155 has 16 divisors (see below), whose sum is σ = 88262322720. Its totient is φ = 29399966208.

The previous prime is 55144444151. The next prime is 55144444217.

55144444155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55144444155 - 2² = 55144444151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55144444151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606340 + ... + 691329.

It is an arithmetic number, because the mean of its divisors is an integer number (5516395170).

Almost surely, 2^55144444155 is an apocalyptic number.

55144444155 is a deficient number, since it is larger than the sum of its proper divisors (33117878565).

55144444155 is a wasteful number, since it uses less digits than its factorization.

55144444155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300510.

The product of its digits is 640000, while the sum is 42.

The spelling of 55144444155 in words is "fifty-five billion, one hundred forty-four million, four hundred forty-four thousand, one hundred fifty-five".