2656636356 has 24 divisors (see below), whose sum is σ = 6762347424. Its totient is φ = 805041280.

The previous prime is 2656636331. The next prime is 2656636387. The reversal of 2656636356 is 6536366562.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10062885 + ... + 10063148.

It is an arithmetic number, because the mean of its divisors is an integer number (281764476).

Almost surely, 2^2656636356 is an apocalyptic number.

It is an amenable number.

2656636356 is an abundant number, since it is smaller than the sum of its proper divisors (4105711068).

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

2656636356 is a wasteful number, since it uses less digits than its factorization.

2656636356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20126051 (or 20126049 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 48.

The square root of 2656636356 is about 51542.5683876929. The cubic root of 2656636356 is about 1384.9817069790.

The spelling of 2656636356 in words is "two billion, six hundred fifty-six million, six hundred thirty-six thousand, three hundred fifty-six".