20344650624256 has 72 divisors (see below), whose sum is σ = 49141306912320. Its totient is φ = 8206245617664.

The previous prime is 20344650624247. The next prime is 20344650624301. The reversal of 20344650624256 is 65242605644302.

It is a congruent number.

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, 333882526 + ... + 333943453.

It is an arithmetic number, because the mean of its divisors is an integer number (682518151560).

Almost surely, 2^{20344650624256} is an apocalyptic number.

It is an amenable number.

20344650624256 is an abundant number, since it is smaller than the sum of its proper divisors (28796656288064).

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

20344650624256 is an equidigital number, since it uses as much as digits as its factorization.

20344650624256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667826019 (or 667826005 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 49.

The spelling of 20344650624256 in words is "twenty trillion, three hundred forty-four billion, six hundred fifty million, six hundred twenty-four thousand, two hundred fifty-six".