12680166 has 8 divisors (see below), whose sum is σ = 25360344. Its totient is φ = 4226720.

The previous prime is 12680149. The next prime is 12680179. The reversal of 12680166 is 66108621.

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

12680166 is an admirable number.

It is a Curzon number.

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, 1056675 + ... + 1056686.

It is an arithmetic number, because the mean of its divisors is an integer number (3170043).

Almost surely, 2^12680166 is an apocalyptic number.

12680166 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.

12680166 is a wasteful number, since it uses less digits than its factorization.

12680166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113366.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 12680166 is about 3560.9220715989. The cubic root of 12680166 is about 233.1891358492.

Adding to 12680166 its reverse (66108621), we get a palindrome (78788787).

The spelling of 12680166 in words is "twelve million, six hundred eighty thousand, one hundred sixty-six".