12666306 has 8 divisors (see below), whose sum is σ = 25332624. Its totient is φ = 4222100.

The previous prime is 12666299. The next prime is 12666347. The reversal of 12666306 is 60366621.

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

12666306 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055520 + ... + 1055531.

It is an arithmetic number, because the mean of its divisors is an integer number (3166578).

Almost surely, 2^12666306 is an apocalyptic number.

12666306 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12666306 is a wasteful number, since it uses less digits than its factorization.

12666306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111056.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 12666306 is about 3558.9754143573. The cubic root of 12666306 is about 233.1041427528.

The spelling of 12666306 in words is "twelve million, six hundred sixty-six thousand, three hundred six".