12546666 has 24 divisors (see below), whose sum is σ = 29656224. Its totient is φ = 3801960.

The previous prime is 12546643. The next prime is 12546683. The reversal of 12546666 is 66664521.

It is a happy number.

12546666 is a modest number, since divided by 6666 gives 1254 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 12546666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31486 + ... + 31881.

It is an arithmetic number, because the mean of its divisors is an integer number (1235676).

Almost surely, 2^12546666 is an apocalyptic number.

12546666 is an abundant number, since it is smaller than the sum of its proper divisors (17109558).

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

12546666 is a wasteful number, since it uses less digits than its factorization.

12546666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63386 (or 63383 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 12546666 is about 3542.1273269040. The cubic root of 12546666 is about 232.3678888725.

The spelling of 12546666 in words is "twelve million, five hundred forty-six thousand, six hundred sixty-six".