2180855376 has 60 divisors (see below), whose sum is σ = 6975278752. Its totient is φ = 623101248.

The previous prime is 2180855371. The next prime is 2180855389. The reversal of 2180855376 is 6735580812.

2180855376 is a `hidden beast` number, since 21 + 8 + 0 + 8 + 553 + 76 = 666.

It is a super-2 number, since 2×2180855376² = 9512260342056202752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180855371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1080766 + ... + 1082781.

Almost surely, 2^2180855376 is an apocalyptic number.

It is an amenable number.

2180855376 is an abundant number, since it is smaller than the sum of its proper divisors (4794423376).

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

2180855376 is a wasteful number, since it uses less digits than its factorization.

2180855376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163568 (or 2163559 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 2180855376 is about 46699.6292918905. The cubic root of 2180855376 is about 1296.8078239795.

The spelling of 2180855376 in words is "two billion, one hundred eighty million, eight hundred fifty-five thousand, three hundred seventy-six".