12517456016 has 40 divisors (see below), whose sum is σ = 26127327744. Its totient is φ = 5775258240.

The previous prime is 12517455959. The next prime is 12517456019. The reversal of 12517456016 is 61065471521.

It is a super-2 number, since 2×12517456016² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12517456019) 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, 696455 + ... + 714201.

Almost surely, 2^12517456016 is an apocalyptic number.

12517456016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12517456016 is an abundant number, since it is smaller than the sum of its proper divisors (13609871728).

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

12517456016 is a wasteful number, since it uses less digits than its factorization.

12517456016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21159 (or 21153 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 12517456016 in words is "twelve billion, five hundred seventeen million, four hundred fifty-six thousand, sixteen".