12166620 has 24 divisors (see below), whose sum is σ = 34066704. Its totient is φ = 3244416.

The previous prime is 12166607. The next prime is 12166667. The reversal of 12166620 is 2666121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101329 + ... + 101448.

It is an arithmetic number, because the mean of its divisors is an integer number (1419446).

Almost surely, 2^12166620 is an apocalyptic number.

12166620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12166620 is an abundant number, since it is smaller than the sum of its proper divisors (21900084).

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

12166620 is a wasteful number, since it uses less digits than its factorization.

12166620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202789 (or 202787 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12166620 is about 3488.0682332776. The cubic root of 12166620 is about 229.9976055201.

The spelling of 12166620 in words is "twelve million, one hundred sixty-six thousand, six hundred twenty".