18666162 has 24 divisors (see below), whose sum is σ = 40607424. Its totient is φ = 6196824.

The previous prime is 18666161. The next prime is 18666163. The reversal of 18666162 is 26166681.

It is an interprime number because it is at equal distance from previous prime (18666161) and next prime (18666163).

It is not an unprimeable number, because it can be changed into a prime (18666161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2763 + ... + 6705.

It is an arithmetic number, because the mean of its divisors is an integer number (1691976).

Almost surely, 2^18666162 is an apocalyptic number.

18666162 is an abundant number, since it is smaller than the sum of its proper divisors (21941262).

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

18666162 is a wasteful number, since it uses less digits than its factorization.

18666162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214 (or 4211 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 18666162 is about 4320.4353947259. The cubic root of 18666162 is about 265.2680899126.

The spelling of 18666162 in words is "eighteen million, six hundred sixty-six thousand, one hundred sixty-two".