12666014256 has 80 divisors (see below), whose sum is σ = 39020788224. Its totient is φ = 3461517312.

The previous prime is 12666014183. The next prime is 12666014261. The reversal of 12666014256 is 65241066621.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 811761 + ... + 827216.

Almost surely, 2^12666014256 is an apocalyptic number.

12666014256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12666014256 is an abundant number, since it is smaller than the sum of its proper divisors (26354773968).

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

12666014256 is a wasteful number, since it uses less digits than its factorization.

12666014256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639018 (or 1639012 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 12666014256 in words is "twelve billion, six hundred sixty-six million, fourteen thousand, two hundred fifty-six".