55144121711 has 24 divisors (see below), whose sum is σ = 64543618944. Its totient is φ = 46975057920.

The previous prime is 55144121699. The next prime is 55144121717. The reversal of 55144121711 is 11712144155.

It is not a de Polignac number, because 55144121711 - 2³⁴ = 37964252527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55144121717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7000271 + ... + 7008143.

It is an arithmetic number, because the mean of its divisors is an integer number (2689317456).

Almost surely, 2^55144121711 is an apocalyptic number.

55144121711 is a deficient number, since it is larger than the sum of its proper divisors (9399497233).

55144121711 is a wasteful number, since it uses less digits than its factorization.

55144121711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8751 (or 8744 counting only the distinct ones).

The product of its digits is 5600, while the sum is 32.

Adding to 55144121711 its reverse (11712144155), we get a palindrome (66856265866).

The spelling of 55144121711 in words is "fifty-five billion, one hundred forty-four million, one hundred twenty-one thousand, seven hundred eleven".