12655566218 has 16 divisors (see below), whose sum is σ = 19022739840. Its totient is φ = 6314666400.

The previous prime is 12655566167. The next prime is 12655566251. The reversal of 12655566218 is 81266555621.

12655566218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3623453 + ... + 3626943.

It is an arithmetic number, because the mean of its divisors is an integer number (1188921240).

Almost surely, 2^12655566218 is an apocalyptic number.

12655566218 is a deficient number, since it is larger than the sum of its proper divisors (6367173622).

12655566218 is a wasteful number, since it uses less digits than its factorization.

12655566218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6733.

The product of its digits is 864000, while the sum is 47.

The spelling of 12655566218 in words is "twelve billion, six hundred fifty-five million, five hundred sixty-six thousand, two hundred eighteen".