2180564360 has 32 divisors (see below), whose sum is σ = 5283676440. Its totient is φ = 805131264.

The previous prime is 2180564329. The next prime is 2180564369. The reversal of 2180564360 is 634650812.

It can be written as a sum of positive squares in 4 ways, for example, as 1352621284 + 827943076 = 36778^2 + 28774^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2180564360.

It is not an unprimeable number, because it can be changed into a prime (2180564369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2096177 + ... + 2097216.

Almost surely, 2^2180564360 is an apocalyptic number.

2180564360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2180564360 is an abundant number, since it is smaller than the sum of its proper divisors (3103112080).

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

2180564360 is a wasteful number, since it uses less digits than its factorization.

2180564360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193417 (or 4193413 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 2180564360 is about 46696.5133602071. The cubic root of 2180564360 is about 1296.7501388746.

The spelling of 2180564360 in words is "two billion, one hundred eighty million, five hundred sixty-four thousand, three hundred sixty".