20314472656 has 20 divisors (see below), whose sum is σ = 39371064292. Its totient is φ = 10154198016.

The previous prime is 20314472627. The next prime is 20314472729. The reversal of 20314472656 is 65627441302.

It can be written as a sum of positive squares in 2 ways, for example, as 13685256256 + 6629216400 = 116984^2 + 81420^2 .

It is a congruent number.

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, 134241 + ... + 242176.

Almost surely, 2^20314472656 is an apocalyptic number.

It is an amenable number.

20314472656 is a deficient number, since it is larger than the sum of its proper divisors (19056591636).

20314472656 is a wasteful number, since it uses less digits than its factorization.

20314472656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379798 (or 379792 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 20314472656 in words is "twenty billion, three hundred fourteen million, four hundred seventy-two thousand, six hundred fifty-six".