12563616656416 has 24 divisors (see below), whose sum is σ = 28268137477440. Its totient is φ = 5384407138368.

The previous prime is 12563616656413. The next prime is 12563616656417. The reversal of 12563616656416 is 61465661636521.

It is not an unprimeable number, because it can be changed into a prime (12563616656413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28043786956 + ... + 28043787403.

It is an arithmetic number, because the mean of its divisors is an integer number (1177839061560).

Almost surely, 2^{12563616656416} is an apocalyptic number.

12563616656416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12563616656416 is an abundant number, since it is smaller than the sum of its proper divisors (15704520821024).

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

12563616656416 is an equidigital number, since it uses as much as digits as its factorization.

12563616656416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56087574376 (or 56087574368 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 58.

The spelling of 12563616656416 in words is "twelve trillion, five hundred sixty-three billion, six hundred sixteen million, six hundred fifty-six thousand, four hundred sixteen".