55431162160 has 80 divisors (see below), whose sum is σ = 142043221152. Its totient is φ = 19948953600.

The previous prime is 55431162133. The next prime is 55431162161. The reversal of 55431162160 is 6126113455.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×55431162160² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55431162161) 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 15 ways as a sum of consecutive naturals, for example, 239331 + ... + 410050.

Almost surely, 2^55431162160 is an apocalyptic number.

It is an amenable number.

55431162160 is an abundant number, since it is smaller than the sum of its proper divisors (86612058992).

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

55431162160 is a wasteful number, since it uses less digits than its factorization.

55431162160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649502 (or 649496 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 55431162160 in words is "fifty-five billion, four hundred thirty-one million, one hundred sixty-two thousand, one hundred sixty".