12506615356 has 24 divisors (see below), whose sum is σ = 22133296080. Its totient is φ = 6183082752.

The previous prime is 12506615333. The next prime is 12506615377. The reversal of 12506615356 is 65351660521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156370 + ... + 222406.

It is an arithmetic number, because the mean of its divisors is an integer number (922220670).

Almost surely, 2^12506615356 is an apocalyptic number.

It is an amenable number.

12506615356 is a deficient number, since it is larger than the sum of its proper divisors (9626680724).

12506615356 is a wasteful number, since it uses less digits than its factorization.

12506615356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66573 (or 66571 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 12506615356 in words is "twelve billion, five hundred six million, six hundred fifteen thousand, three hundred fifty-six".