18275166 has 64 divisors (see below), whose sum is σ = 49996800. Its totient is φ = 4818528.

The previous prime is 18275113. The next prime is 18275167. The reversal of 18275166 is 66157281.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18275166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18275167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3055 + ... + 6773.

It is an arithmetic number, because the mean of its divisors is an integer number (781200).

Almost surely, 2^18275166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18275166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24998400).

18275166 is an abundant number, since it is smaller than the sum of its proper divisors (31721634).

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

18275166 is a wasteful number, since it uses less digits than its factorization.

18275166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750 (or 3744 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 18275166 is about 4274.9463154524. The cubic root of 18275166 is about 263.4028341184.

The spelling of 18275166 in words is "eighteen million, two hundred seventy-five thousand, one hundred sixty-six".