12666662 has 8 divisors (see below), whose sum is σ = 19612992. Its totient is φ = 6129000.

The previous prime is 12666607. The next prime is 12666671. The reversal of 12666662 is 26666621.

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

It is a congruent 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, 102089 + ... + 102212.

It is an arithmetic number, because the mean of its divisors is an integer number (2451624).

Almost surely, 2^12666662 is an apocalyptic number.

12666662 is a deficient number, since it is larger than the sum of its proper divisors (6946330).

12666662 is a wasteful number, since it uses less digits than its factorization.

12666662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204334.

The product of its digits is 31104, while the sum is 35.

The square root of 12666662 is about 3559.0254284003. The cubic root of 12666662 is about 233.1063266123.

The spelling of 12666662 in words is "twelve million, six hundred sixty-six thousand, six hundred sixty-two".