12606666 has 8 divisors (see below), whose sum is σ = 25213344. Its totient is φ = 4202220.

The previous prime is 12606661. The next prime is 12606667. The reversal of 12606666 is 66660621.

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

12606666 is an admirable number.

12606666 is a modest number, since divided by 6666 gives 1260 as remainder.

It is not an unprimeable number, because it can be changed into a prime (12606661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050550 + ... + 1050561.

It is an arithmetic number, because the mean of its divisors is an integer number (3151668).

Almost surely, 2^12606666 is an apocalyptic number.

12606666 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.

12606666 is a wasteful number, since it uses less digits than its factorization.

12606666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101116.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 12606666 is about 3550.5867120801. The cubic root of 12606666 is about 232.7377057849.

The spelling of 12606666 in words is "twelve million, six hundred six thousand, six hundred sixty-six".