2656656963 has 12 divisors (see below), whose sum is σ = 4063122648. Its totient is φ = 1666921920.

The previous prime is 2656656923. The next prime is 2656656979. The reversal of 2656656963 is 3696566562.

2656656963 is a `hidden beast` number, since 26 + 56 + 6 + 569 + 6 + 3 = 666.

It is not a de Polignac number, because 2656656963 - 2⁸ = 2656656707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2656656923) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8681733 + ... + 8682038.

It is an arithmetic number, because the mean of its divisors is an integer number (338593554).

Almost surely, 2^2656656963 is an apocalyptic number.

2656656963 is a deficient number, since it is larger than the sum of its proper divisors (1406465685).

2656656963 is a wasteful number, since it uses less digits than its factorization.

2656656963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17363794 (or 17363791 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 54.

The square root of 2656656963 is about 51542.7682900327. The cubic root of 2656656963 is about 1384.9852879790.

The spelling of 2656656963 in words is "two billion, six hundred fifty-six million, six hundred fifty-six thousand, nine hundred sixty-three".