328667766647344 has 20 divisors (see below), whose sum is σ = 637287819484680. Its totient is φ = 164206393877120.

The previous prime is 328667766647281. The next prime is 328667766647351. The reversal of 328667766647344 is 443746667766823.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7968069142 + ... + 7968110389.

It is an arithmetic number, because the mean of its divisors is an integer number (31864390974234).

Almost surely, 2^{328667766647344} is an apocalyptic number.

It is an amenable number.

328667766647344 is a deficient number, since it is larger than the sum of its proper divisors (308620052837336).

328667766647344 is a wasteful number, since it uses less digits than its factorization.

328667766647344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15936180828 (or 15936180822 counting only the distinct ones).

The product of its digits is 24580620288, while the sum is 79.

The spelling of 328667766647344 in words is "three hundred twenty-eight trillion, six hundred sixty-seven billion, seven hundred sixty-six million, six hundred forty-seven thousand, three hundred forty-four".