12666411 has 12 divisors (see below), whose sum is σ = 19372392. Its totient is φ = 7947456.

The previous prime is 12666389. The next prime is 12666413. The reversal of 12666411 is 11466621.

It is not a de Polignac number, because 12666411 - 2⁶ = 12666347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12666413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41241 + ... + 41546.

It is an arithmetic number, because the mean of its divisors is an integer number (1614366).

Almost surely, 2^12666411 is an apocalyptic number.

12666411 is a deficient number, since it is larger than the sum of its proper divisors (6705981).

12666411 is a wasteful number, since it uses less digits than its factorization.

12666411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82810 (or 82807 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 12666411 is about 3558.9901657633. The cubic root of 12666411 is about 233.1047868729.

The spelling of 12666411 in words is "twelve million, six hundred sixty-six thousand, four hundred eleven".