2656646312 has 16 divisors (see below), whose sum is σ = 4981759200. Its totient is φ = 1328177200.

The previous prime is 2656646273. The next prime is 2656646347. The reversal of 2656646312 is 2136466562.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2656646312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129239 + ... + 148377.

It is an arithmetic number, because the mean of its divisors is an integer number (311359950).

Almost surely, 2^2656646312 is an apocalyptic number.

It is an amenable number.

2656646312 is a deficient number, since it is larger than the sum of its proper divisors (2325112888).

2656646312 is a wasteful number, since it uses less digits than its factorization.

2656646312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36496 (or 36492 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The square root of 2656646312 is about 51542.6649679661. The cubic root of 2656646312 is about 1384.9834370942.

The spelling of 2656646312 in words is "two billion, six hundred fifty-six million, six hundred forty-six thousand, three hundred twelve".