12566666014 has 32 divisors (see below), whose sum is σ = 22247499456. Its totient is φ = 5211164160.

The previous prime is 12566665973. The next prime is 12566666029. The reversal of 12566666014 is 41066666521.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 26742 + ... + 160774.

It is an arithmetic number, because the mean of its divisors is an integer number (695234358).

Almost surely, 2^12566666014 is an apocalyptic number.

12566666014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12566666014 is a deficient number, since it is larger than the sum of its proper divisors (9680833442).

12566666014 is a wasteful number, since it uses less digits than its factorization.

12566666014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134260.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 12566666014 in words is "twelve billion, five hundred sixty-six million, six hundred sixty-six thousand, fourteen".