18016166 has 16 divisors (see below), whose sum is σ = 31347456. Its totient is φ = 7605576.

The previous prime is 18016157. The next prime is 18016169. The reversal of 18016166 is 66161081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18016169) 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, 8666 + ... + 10541.

It is an arithmetic number, because the mean of its divisors is an integer number (1959216).

Almost surely, 2^18016166 is an apocalyptic number.

18016166 is a deficient number, since it is larger than the sum of its proper divisors (13331290).

18016166 is a wasteful number, since it uses less digits than its factorization.

18016166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19283.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 18016166 is about 4244.5454409159. The cubic root of 18016166 is about 262.1525731770.

The spelling of 18016166 in words is "eighteen million, sixteen thousand, one hundred sixty-six".