320846663 has 6 divisors (see below), whose sum is σ = 323724024. Its totient is φ = 317994656.

The previous prime is 320846651. The next prime is 320846681. The reversal of 320846663 is 366648023.

It is not a de Polignac number, because 320846663 - 2¹² = 320842567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320846363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206 + ... + 25332.

It is an arithmetic number, because the mean of its divisors is an integer number (53954004).

Almost surely, 2^320846663 is an apocalyptic number.

320846663 is a deficient number, since it is larger than the sum of its proper divisors (2877361).

320846663 is an equidigital number, since it uses as much as digits as its factorization.

320846663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25353 (or 25240 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 320846663 is about 17912.1931376367. The cubic root of 320846663 is about 684.5930863325.

The spelling of 320846663 in words is "three hundred twenty million, eight hundred forty-six thousand, six hundred sixty-three".