12066645 has 8 divisors (see below), whose sum is σ = 19306656. Its totient is φ = 6435536.

The previous prime is 12066641. The next prime is 12066667. The reversal of 12066645 is 54666021.

12066645 is digitally balanced in base 3, 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 a cyclic number.

It is not a de Polignac number, because 12066645 - 2² = 12066641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12066641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402207 + ... + 402236.

It is an arithmetic number, because the mean of its divisors is an integer number (2413332).

Almost surely, 2^12066645 is an apocalyptic number.

12066645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12066645 is a deficient number, since it is larger than the sum of its proper divisors (7240011).

12066645 is an equidigital number, since it uses as much as digits as its factorization.

12066645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804451.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 12066645 is about 3473.7076733657. The cubic root of 12066645 is about 229.3658967548.

The spelling of 12066645 in words is "twelve million, sixty-six thousand, six hundred forty-five".