326166666 has 32 divisors (see below), whose sum is σ = 753909120. Its totient is φ = 92142336.

The previous prime is 326166649. The next prime is 326166679. The reversal of 326166666 is 666661623.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

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 15 ways as a sum of consecutive naturals, for example, 39891 + ... + 47366.

It is an arithmetic number, because the mean of its divisors is an integer number (23559660).

Almost surely, 2^326166666 is an apocalyptic number.

326166666 is an abundant number, since it is smaller than the sum of its proper divisors (427742454).

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

326166666 is a wasteful number, since it uses less digits than its factorization.

326166666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87358.

The product of its digits is 279936, while the sum is 42.

The square root of 326166666 is about 18060.0848835215. The cubic root of 326166666 is about 688.3561413855.

The spelling of 326166666 in words is "three hundred twenty-six million, one hundred sixty-six thousand, six hundred sixty-six".