320485803329 has 2 divisors, whose sum is σ = 320485803330. Its totient is φ = 320485803328.

The previous prime is 320485803301. The next prime is 320485803437. The reversal of 320485803329 is 923308584023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314971255729 + 5514547600 = 561223^2 + 74260^2 .

It is a cyclic number.

It is not a de Polignac number, because 320485803329 - 2²⁰ = 320484754753 is a prime.

It is a super-2 number, since 2×320485803329² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (320485808329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160242901664 + 160242901665.

It is an arithmetic number, because the mean of its divisors is an integer number (160242901665).

Almost surely, 2^320485803329 is an apocalyptic number.

It is an amenable number.

320485803329 is a deficient number, since it is larger than the sum of its proper divisors (1).

320485803329 is an equidigital number, since it uses as much as digits as its factorization.

320485803329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 320485803329 in words is "three hundred twenty billion, four hundred eighty-five million, eight hundred three thousand, three hundred twenty-nine".