55178881944 has 16 divisors (see below), whose sum is σ = 137947204920. Its totient is φ = 18392960640.

The previous prime is 55178881931. The next prime is 55178881957. The reversal of 55178881944 is 44918887155.

It is an interprime number because it is at equal distance from previous prime (55178881931) and next prime (55178881957).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1149560017 + ... + 1149560064.

Almost surely, 2^55178881944 is an apocalyptic number.

It is an amenable number.

55178881944 is an abundant number, since it is smaller than the sum of its proper divisors (82768322976).

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

55178881944 is a wasteful number, since it uses less digits than its factorization.

55178881944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299120090 (or 2299120086 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 60.

The spelling of 55178881944 in words is "fifty-five billion, one hundred seventy-eight million, eight hundred eighty-one thousand, nine hundred forty-four".