320605063 has 16 divisors (see below), whose sum is σ = 336869280. Its totient is φ = 304730496.

The previous prime is 320605049. The next prime is 320605067. The reversal of 320605063 is 360506023.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320605063 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 (320605067) by changing a digit.

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, 859345 + ... + 859717.

It is an arithmetic number, because the mean of its divisors is an integer number (21054330).

Almost surely, 2^320605063 is an apocalyptic number.

320605063 is a deficient number, since it is larger than the sum of its proper divisors (16264217).

320605063 is a wasteful number, since it uses less digits than its factorization.

320605063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 320605063 is about 17905.4478581241. The cubic root of 320605063 is about 684.4212085672.

The spelling of 320605063 in words is "three hundred twenty million, six hundred five thousand, sixty-three".