55144151205 has 128 divisors (see below), whose sum is σ = 107314937856. Its totient is φ = 23819443200.

The previous prime is 55144151191. The next prime is 55144151207. The reversal of 55144151205 is 50215144155.

It is a happy number.

It is not a de Polignac number, because 55144151205 - 2¹¹ = 55144149157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55144151207) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10076620 + ... + 10082090.

It is an arithmetic number, because the mean of its divisors is an integer number (838397952).

Almost surely, 2^55144151205 is an apocalyptic number.

55144151205 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55144151205 is a deficient number, since it is larger than the sum of its proper divisors (52170786651).

55144151205 is a wasteful number, since it uses less digits than its factorization.

55144151205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5667.

The product of its (nonzero) digits is 20000, while the sum is 33.

The spelling of 55144151205 in words is "fifty-five billion, one hundred forty-four million, one hundred fifty-one thousand, two hundred five".