20944512117516 has 72 divisors (see below), whose sum is σ = 54349217149584. Its totient is φ = 6270290507520.

The previous prime is 20944512117511. The next prime is 20944512117563. The reversal of 20944512117516 is 61571121544902.

It is not an unprimeable number, because it can be changed into a prime (20944512117511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139488055 + ... + 139638126.

Almost surely, 2^{20944512117516} is an apocalyptic number.

20944512117516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20944512117516 is an abundant number, since it is smaller than the sum of its proper divisors (33404705032068).

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

20944512117516 is a wasteful number, since it uses less digits than its factorization.

20944512117516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279126251 (or 279126236 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 20944512117516 in words is "twenty trillion, nine hundred forty-four billion, five hundred twelve million, one hundred seventeen thousand, five hundred sixteen".