12166546 has 8 divisors (see below), whose sum is σ = 20856960. Its totient is φ = 5214228.

The previous prime is 12166537. The next prime is 12166547. The reversal of 12166546 is 64566121.

12166546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (12166547) 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, 434506 + ... + 434533.

It is an arithmetic number, because the mean of its divisors is an integer number (2607120).

Almost surely, 2^12166546 is an apocalyptic number.

12166546 is a deficient number, since it is larger than the sum of its proper divisors (8690414).

12166546 is an equidigital number, since it uses as much as digits as its factorization.

12166546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869048.

The product of its digits is 8640, while the sum is 31.

The square root of 12166546 is about 3488.0576256708. The cubic root of 12166546 is about 229.9971392209.

The spelling of 12166546 in words is "twelve million, one hundred sixty-six thousand, five hundred forty-six".