12562899516 has 72 divisors (see below), whose sum is σ = 32130483840. Its totient is φ = 4138407936.

The previous prime is 12562899473. The next prime is 12562899551. The reversal of 12562899516 is 61599826521.

12562899516 is a `hidden beast` number, since 1 + 2 + 5 + 628 + 9 + 9 + 5 + 1 + 6 = 666.

It is a super-2 number, since 2×12562899516² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2822805 + ... + 2827251.

It is an arithmetic number, because the mean of its divisors is an integer number (446256720).

Almost surely, 2^12562899516 is an apocalyptic number.

It is an amenable number.

12562899516 is an abundant number, since it is smaller than the sum of its proper divisors (19567584324).

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

12562899516 is a wasteful number, since it uses less digits than its factorization.

12562899516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5363 (or 5358 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 54.

The spelling of 12562899516 in words is "twelve billion, five hundred sixty-two million, eight hundred ninety-nine thousand, five hundred sixteen".