326641166 has 8 divisors (see below), whose sum is σ = 491528064. Its totient is φ = 162798480.

The previous prime is 326641157. The next prime is 326641253. The reversal of 326641166 is 661146623.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 260270 + ... + 261521.

It is an arithmetic number, because the mean of its divisors is an integer number (61441008).

Almost surely, 2^326641166 is an apocalyptic number.

326641166 is a deficient number, since it is larger than the sum of its proper divisors (164886898).

326641166 is a wasteful number, since it uses less digits than its factorization.

326641166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522106.

The product of its digits is 31104, while the sum is 35.

The square root of 326641166 is about 18073.2168138381. The cubic root of 326641166 is about 688.6897813740.

Adding to 326641166 its reverse (661146623), we get a palindrome (987787789).

The spelling of 326641166 in words is "three hundred twenty-six million, six hundred forty-one thousand, one hundred sixty-six".