20312455302656 has 40 divisors (see below), whose sum is σ = 44274804929784. Its totient is φ = 9232934225920.

The previous prime is 20312455302637. The next prime is 20312455302661. The reversal of 20312455302656 is 65620355421302.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 1803301835 + ... + 1803313098.

Almost surely, 2^{20312455302656} is an apocalyptic number.

It is an amenable number.

20312455302656 is an abundant number, since it is smaller than the sum of its proper divisors (23962349627128).

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

20312455302656 is an equidigital number, since it uses as much as digits as its factorization.

20312455302656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3606614962 (or 3606614946 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 20312455302656 in words is "twenty trillion, three hundred twelve billion, four hundred fifty-five million, three hundred two thousand, six hundred fifty-six".