9818166 has 16 divisors (see below), whose sum is σ = 19828224. Its totient is φ = 3240744.

The previous prime is 9818161. The next prime is 9818173. The reversal of 9818166 is 6618189.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9818161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7326 + ... + 8561.

It is an arithmetic number, because the mean of its divisors is an integer number (1239264).

Almost surely, 2^9818166 is an apocalyptic number.

9818166 is an abundant number, since it is smaller than the sum of its proper divisors (10010058).

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

9818166 is a wasteful number, since it uses less digits than its factorization.

9818166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15995.

The product of its digits is 20736, while the sum is 39.

The square root of 9818166 is about 3133.3952830755. The cubic root of 9818166 is about 214.1296416554.

The spelling of 9818166 in words is "nine million, eight hundred eighteen thousand, one hundred sixty-six".