55124542164 has 12 divisors (see below), whose sum is σ = 128623931744. Its totient is φ = 18374847384.

The previous prime is 55124542157. The next prime is 55124542169. The reversal of 55124542164 is 46124542155.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×55124542164² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55124542169) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2296855912 + ... + 2296855935.

Almost surely, 2^55124542164 is an apocalyptic number.

It is an amenable number.

55124542164 is an abundant number, since it is smaller than the sum of its proper divisors (73499389580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55124542164 is a wasteful number, since it uses less digits than its factorization.

55124542164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4593711854 (or 4593711852 counting only the distinct ones).

The product of its digits is 192000, while the sum is 39.

Subtracting from 55124542164 its reverse (46124542155), we obtain a palindrome (9000000009).

The spelling of 55124542164 in words is "fifty-five billion, one hundred twenty-four million, five hundred forty-two thousand, one hundred sixty-four".