2160656559 has 16 divisors (see below), whose sum is σ = 3201776640. Its totient is φ = 1440075960.

The previous prime is 2160656503. The next prime is 2160656567. The reversal of 2160656559 is 9556560612.

2160656559 is a `hidden beast` number, since 21 + 60 + 6 + 565 + 5 + 9 = 666.

It is not a de Polignac number, because 2160656559 - 2⁷ = 2160656431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160656159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140404 + ... + 155030.

It is an arithmetic number, because the mean of its divisors is an integer number (200111040).

Almost surely, 2^2160656559 is an apocalyptic number.

2160656559 is a deficient number, since it is larger than the sum of its proper divisors (1041120081).

2160656559 is a wasteful number, since it uses less digits than its factorization.

2160656559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20107 (or 20101 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

The square root of 2160656559 is about 46482.8630680168. The cubic root of 2160656559 is about 1292.7917742219.

The spelling of 2160656559 in words is "two billion, one hundred sixty million, six hundred fifty-six thousand, five hundred fifty-nine".