321965940466 has 16 divisors (see below), whose sum is σ = 515954849760. Its totient is φ = 150233909760.

The previous prime is 321965940437. The next prime is 321965940481. The reversal of 321965940466 is 664049569123.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63227215 + ... + 63232306.

It is an arithmetic number, because the mean of its divisors is an integer number (32247178110).

Almost surely, 2^321965940466 is an apocalyptic number.

321965940466 is a deficient number, since it is larger than the sum of its proper divisors (193988909294).

321965940466 is a wasteful number, since it uses less digits than its factorization.

321965940466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126459609.

The product of its (nonzero) digits is 8398080, while the sum is 55.

The spelling of 321965940466 in words is "three hundred twenty-one billion, nine hundred sixty-five million, nine hundred forty thousand, four hundred sixty-six".