12166528 has 32 divisors (see below), whose sum is σ = 26444520. Its totient is φ = 5529600.

The previous prime is 12166513. The next prime is 12166529. The reversal of 12166528 is 82566121.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 12166528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12166529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2913 + ... + 5728.

Almost surely, 2^12166528 is an apocalyptic number.

It is an amenable number.

12166528 is an abundant number, since it is smaller than the sum of its proper divisors (14277992).

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

12166528 is an equidigital number, since it uses as much as digits as its factorization.

12166528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8666 (or 8654 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 12166528 is about 3488.0550454372. The cubic root of 12166528 is about 229.9970257964.

It can be divided in two parts, 1216 and 6528, that added together give a square (7744 = 88²).

The spelling of 12166528 in words is "twelve million, one hundred sixty-six thousand, five hundred twenty-eight".