2656864722 has 16 divisors (see below), whose sum is σ = 5315090400. Its totient is φ = 885394752.

The previous prime is 2656864697. The next prime is 2656864729. The reversal of 2656864722 is 2274686562.

2656864722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2656864729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30388 + ... + 78975.

It is an arithmetic number, because the mean of its divisors is an integer number (332193150).

Almost surely, 2^2656864722 is an apocalyptic number.

2656864722 is an abundant number, since it is smaller than the sum of its proper divisors (2658225678).

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

2656864722 is a wasteful number, since it uses less digits than its factorization.

2656864722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113417.

The product of its digits is 1935360, while the sum is 48.

The square root of 2656864722 is about 51544.7836546047. The cubic root of 2656864722 is about 1385.0213904519.

The spelling of 2656864722 in words is "two billion, six hundred fifty-six million, eight hundred sixty-four thousand, seven hundred twenty-two".