320025531320 has 64 divisors (see below), whose sum is σ = 785580042240. Its totient is φ = 116363612800.

The previous prime is 320025531253. The next prime is 320025531337. The reversal of 320025531320 is 23135520023.

It is a self number, because there is not a number n which added to its sum of digits gives 320025531320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7984049 + ... + 8024031.

It is an arithmetic number, because the mean of its divisors is an integer number (12274688160).

Almost surely, 2^320025531320 is an apocalyptic number.

It is an amenable number.

320025531320 is an abundant number, since it is smaller than the sum of its proper divisors (465554510920).

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

320025531320 is a wasteful number, since it uses less digits than its factorization.

320025531320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58196 (or 58192 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The spelling of 320025531320 in words is "three hundred twenty billion, twenty-five million, five hundred thirty-one thousand, three hundred twenty".