12066866 has 16 divisors (see below), whose sum is σ = 20782656. Its totient is φ = 5147376.

The previous prime is 12066829. The next prime is 12066883. The reversal of 12066866 is 66866021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280 + ... + 5076.

It is an arithmetic number, because the mean of its divisors is an integer number (1298916).

Almost surely, 2^12066866 is an apocalyptic number.

12066866 is a deficient number, since it is larger than the sum of its proper divisors (8715790).

12066866 is a wasteful number, since it uses less digits than its factorization.

12066866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4033.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 12066866 is about 3473.7394836113. The cubic root of 12066866 is about 229.3672970212.

The spelling of 12066866 in words is "twelve million, sixty-six thousand, eight hundred sixty-six".