2656544404 has 12 divisors (see below), whose sum is σ = 4675826484. Its totient is φ = 1320593984.

The previous prime is 2656544381. The next prime is 2656544431. The reversal of 2656544404 is 4044456562.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1689210000 + 967334404 = 41100^2 + 31102^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1918777 + ... + 1920160.

It is an arithmetic number, because the mean of its divisors is an integer number (389652207).

Almost surely, 2^2656544404 is an apocalyptic number.

It is an amenable number.

2656544404 is a deficient number, since it is larger than the sum of its proper divisors (2019282080).

2656544404 is a wasteful number, since it uses less digits than its factorization.

2656544404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3839114 (or 3839112 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

The square root of 2656544404 is about 51541.6763794116. The cubic root of 2656544404 is about 1384.9657277118.

The spelling of 2656544404 in words is "two billion, six hundred fifty-six million, five hundred forty-four thousand, four hundred four".