2656043604 has 36 divisors (see below), whose sum is σ = 6758961300. Its totient is φ = 879404160.

The previous prime is 2656043581. The next prime is 2656043669. The reversal of 2656043604 is 4063406562.

2656043604 is a `hidden beast` number, since 2 + 6 + 5 + 6 + 0 + 43 + 604 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1102107204 + 1553936400 = 33198^2 + 39420^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 242217 + ... + 252944.

It is an arithmetic number, because the mean of its divisors is an integer number (187748925).

Almost surely, 2^2656043604 is an apocalyptic number.

It is an amenable number.

2656043604 is an abundant number, since it is smaller than the sum of its proper divisors (4102917696).

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

2656043604 is a wasteful number, since it uses less digits than its factorization.

2656043604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495320 (or 495315 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 2656043604 is about 51536.8179460083. The cubic root of 2656043604 is about 1384.8786930382.

The spelling of 2656043604 in words is "two billion, six hundred fifty-six million, forty-three thousand, six hundred four".