55590179683658 has 32 divisors (see below), whose sum is σ = 85838589288144. Its totient is φ = 26988208146432.

The previous prime is 55590179683651. The next prime is 55590179683681. The reversal of 55590179683658 is 85638697109555.

It can be written as a sum of positive squares in 8 ways, for example, as 34083096353329 + 21507083330329 = 5838073^2 + 4637573^2 .

It is a super-2 number, since 2×55590179683658² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (77) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55590179683651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232634216 + ... + 232873052.

Almost surely, 2^{55590179683658} is an apocalyptic number.

55590179683658 is a deficient number, since it is larger than the sum of its proper divisors (30248409604486).

55590179683658 is a wasteful number, since it uses less digits than its factorization.

55590179683658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261626.

The product of its (nonzero) digits is 2449440000, while the sum is 77.

The spelling of 55590179683658 in words is "fifty-five trillion, five hundred ninety billion, one hundred seventy-nine million, six hundred eighty-three thousand, six hundred fifty-eight".