326320666 has 16 divisors (see below), whose sum is σ = 560586240. Its totient is φ = 139556880.

The previous prime is 326320651. The next prime is 326320699. The reversal of 326320666 is 666023623.

326320666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 17625 + ... + 31036.

It is an arithmetic number, because the mean of its divisors is an integer number (35036640).

Almost surely, 2^326320666 is an apocalyptic number.

326320666 is a deficient number, since it is larger than the sum of its proper divisors (234265574).

326320666 is a wasteful number, since it uses less digits than its factorization.

326320666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49149.

The product of its (nonzero) digits is 46656, while the sum is 34.

The square root of 326320666 is about 18064.3479262330. The cubic root of 326320666 is about 688.4644604111.

The spelling of 326320666 in words is "three hundred twenty-six million, three hundred twenty thousand, six hundred sixty-six".