55144122144155 has 32 divisors (see below), whose sum is σ = 73462050724608. Its totient is φ = 39402720950400.

The previous prime is 55144122144149. The next prime is 55144122144157.

It is a happy number.

55144122144155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55144122144155 - 2²⁶ = 55144055035291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55144122144157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32543249 + ... + 34195778.

It is an arithmetic number, because the mean of its divisors is an integer number (2295689085144).

Almost surely, 2^{55144122144155} is an apocalyptic number.

55144122144155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55144122144155 is a deficient number, since it is larger than the sum of its proper divisors (18317928580453).

55144122144155 is a wasteful number, since it uses less digits than its factorization.

55144122144155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66739307.

The product of its digits is 640000, while the sum is 44.

It can be divided in two parts, 5514412 and 2144155, that added together give a palindrome (7658567).

The spelling of 55144122144155 in words is "fifty-five trillion, one hundred forty-four billion, one hundred twenty-two million, one hundred forty-four thousand, one hundred fifty-five".