12916666 has 8 divisors (see below), whose sum is σ = 22142880. Its totient is φ = 5535708.

The previous prime is 12916627. The next prime is 12916669. The reversal of 12916666 is 66661921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12916669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461296 + ... + 461323.

It is an arithmetic number, because the mean of its divisors is an integer number (2767860).

Almost surely, 2^12916666 is an apocalyptic number.

12916666 is a deficient number, since it is larger than the sum of its proper divisors (9226214).

12916666 is an equidigital number, since it uses as much as digits as its factorization.

12916666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922628.

The product of its digits is 23328, while the sum is 37.

The square root of 12916666 is about 3593.9763493935. The cubic root of 12916666 is about 234.6299654028.

The spelling of 12916666 in words is "twelve million, nine hundred sixteen thousand, six hundred sixty-six".