320485275320 has 64 divisors (see below), whose sum is σ = 824228395200. Its totient is φ = 109864212480.

The previous prime is 320485275293. The next prime is 320485275329. The reversal of 320485275320 is 23572584023.

It is a super-2 number, since 2×320485275320² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320485275329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1866866 + ... + 2031294.

It is an arithmetic number, because the mean of its divisors is an integer number (12878568675).

Almost surely, 2^320485275320 is an apocalyptic number.

It is an amenable number.

320485275320 is an abundant number, since it is smaller than the sum of its proper divisors (503743119880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320485275320 is a wasteful number, since it uses less digits than its factorization.

320485275320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171408 (or 171404 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 320485275320 in words is "three hundred twenty billion, four hundred eighty-five million, two hundred seventy-five thousand, three hundred twenty".