12166308 has 216 divisors, whose sum is σ = 42453600. Its totient is φ = 2993760.

The previous prime is 12166307. The next prime is 12166313. The reversal of 12166308 is 80366121.

12166308 is a `hidden beast` number, since 1 + 21 + 6 + 630 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12166307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 640323 + ... + 640341.

Almost surely, 2^12166308 is an apocalyptic number.

12166308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12166308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21226800).

12166308 is an abundant number, since it is smaller than the sum of its proper divisors (30287292).

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

12166308 is a wasteful number, since it uses less digits than its factorization.

12166308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 42 counting only the distinct ones).

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

The square root of 12166308 is about 3488.0235090951. The cubic root of 12166308 is about 229.9956394888.

The spelling of 12166308 in words is "twelve million, one hundred sixty-six thousand, three hundred eight".