55179109665 has 24 divisors (see below), whose sum is σ = 96490204200. Its totient is φ = 29168423424.

The previous prime is 55179109639. The next prime is 55179109771. The reversal of 55179109665 is 56690197155.

55179109665 is a `hidden beast` number, since 551 + 79 + 10 + 9 + 6 + 6 + 5 = 666.

55179109665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1072628001 + 54106481664 = 32751^2 + 232608^2 .

It is not a de Polignac number, because 55179109665 - 2⁸ = 55179109409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5420590 + ... + 5430759.

It is an arithmetic number, because the mean of its divisors is an integer number (4020425175).

Almost surely, 2^55179109665 is an apocalyptic number.

It is an amenable number.

55179109665 is a deficient number, since it is larger than the sum of its proper divisors (41311094535).

55179109665 is a wasteful number, since it uses less digits than its factorization.

55179109665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10851473 (or 10851470 counting only the distinct ones).

The product of its (nonzero) digits is 2551500, while the sum is 54.

The spelling of 55179109665 in words is "fifty-five billion, one hundred seventy-nine million, one hundred nine thousand, six hundred sixty-five".