12166650 has 72 divisors (see below), whose sum is σ = 34432320. Its totient is φ = 3071520.

The previous prime is 12166607. The next prime is 12166667. The reversal of 12166650 is 5666121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7839 + ... + 9261.

Almost surely, 2^12166650 is an apocalyptic number.

12166650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12166650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17216160).

12166650 is an abundant number, since it is smaller than the sum of its proper divisors (22265670).

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

12166650 is a wasteful number, since it uses less digits than its factorization.

12166650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460 (or 1452 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 12166650 is about 3488.0725336495. The cubic root of 12166650 is about 229.9977945598.

The spelling of 12166650 in words is "twelve million, one hundred sixty-six thousand, six hundred fifty".