55817193744 has 80 divisors (see below), whose sum is σ = 172540345600. Its totient is φ = 17174519424.

The previous prime is 55817193737. The next prime is 55817193781. The reversal of 55817193744 is 44739171855.

55817193744 is a `hidden beast` number, since 5 + 581 + 7 + 19 + 3 + 7 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4963864 + ... + 4975095.

It is an arithmetic number, because the mean of its divisors is an integer number (2156754320).

Almost surely, 2^55817193744 is an apocalyptic number.

55817193744 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

55817193744 is an abundant number, since it is smaller than the sum of its proper divisors (116723151856).

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

55817193744 is a wasteful number, since it uses less digits than its factorization.

55817193744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9938989 (or 9938977 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The spelling of 55817193744 in words is "fifty-five billion, eight hundred seventeen million, one hundred ninety-three thousand, seven hundred forty-four".