2180535860808 has 48 divisors (see below), whose sum is σ = 6109259960700. Its totient is φ = 701781655680.

The previous prime is 2180535860749. The next prime is 2180535860813. The reversal of 2180535860808 is 8080685350812.

It is a happy number.

2180535860808 is a `hidden beast` number, since 2 + 1 + 8 + 0 + 53 + 586 + 0 + 8 + 0 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2166954755364 + 13581105444 = 1472058^2 + 116538^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522156883 + ... + 522161058.

Almost surely, 2^{2180535860808} is an apocalyptic number.

It is an amenable number.

2180535860808 is an abundant number, since it is smaller than the sum of its proper divisors (3928724099892).

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

2180535860808 is a wasteful number, since it uses less digits than its factorization.

2180535860808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044317982 (or 1044317975 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 54.

The spelling of 2180535860808 in words is "two trillion, one hundred eighty billion, five hundred thirty-five million, eight hundred sixty thousand, eight hundred eight".