12655416336512 has 32 divisors (see below), whose sum is σ = 25212158008380. Its totient is φ = 6327659032576.

The previous prime is 12655416336481. The next prime is 12655416336529. The reversal of 12655416336512 is 21563361455621.

It can be written as a sum of positive squares in 2 ways, for example, as 12618806871616 + 36609464896 = 3552296^2 + 191336^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×12655416336512² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20648108 + ... + 21252180.

Almost surely, 2^{12655416336512} is an apocalyptic number.

It is an amenable number.

12655416336512 is a deficient number, since it is larger than the sum of its proper divisors (12556741671868).

12655416336512 is an equidigital number, since it uses as much as digits as its factorization.

12655416336512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767760 (or 767748 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 50.

The spelling of 12655416336512 in words is "twelve trillion, six hundred fifty-five billion, four hundred sixteen million, three hundred thirty-six thousand, five hundred twelve".