12563916064 has 48 divisors (see below), whose sum is σ = 28291491648. Its totient is φ = 5380215552.

The previous prime is 12563916049. The next prime is 12563916067. The reversal of 12563916064 is 46061936521.

It is a self number, because there is not a number n which added to its sum of digits gives 12563916064.

It is not an unprimeable number, because it can be changed into a prime (12563916067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265534 + ... + 309250.

It is an arithmetic number, because the mean of its divisors is an integer number (589406076).

Almost surely, 2^12563916064 is an apocalyptic number.

12563916064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12563916064 is an abundant number, since it is smaller than the sum of its proper divisors (15727575584).

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

12563916064 is a wasteful number, since it uses less digits than its factorization.

12563916064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45017 (or 45009 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 12563916064 in words is "twelve billion, five hundred sixty-three million, nine hundred sixteen thousand, sixty-four".