12506668 has 6 divisors (see below), whose sum is σ = 21886676. Its totient is φ = 6253332.

The previous prime is 12506651. The next prime is 12506677. The reversal of 12506668 is 86660521.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1563330 + ... + 1563337.

Almost surely, 2^12506668 is an apocalyptic number.

It is an amenable number.

12506668 is a deficient number, since it is larger than the sum of its proper divisors (9380008).

12506668 is a wasteful number, since it uses less digits than its factorization.

12506668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3126671 (or 3126669 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 12506668 is about 3536.4767778115. The cubic root of 12506668 is about 232.1207011641.

The spelling of 12506668 in words is "twelve million, five hundred six thousand, six hundred sixty-eight".