325722456320 has 144 divisors (see below), whose sum is σ = 790154190000. Its totient is φ = 128632356864.

The previous prime is 325722456317. The next prime is 325722456329. The reversal of 325722456320 is 23654227523.

It can be written as a sum of positive squares in 8 ways, for example, as 90567291136 + 235155165184 = 300944^2 + 484928^2 .

It is a super-2 number, since 2×325722456320² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (325722456329) 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, 94437956 + ... + 94441404.

It is an arithmetic number, because the mean of its divisors is an integer number (5487181875).

Almost surely, 2^325722456320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325722456320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395077095000).

325722456320 is an abundant number, since it is smaller than the sum of its proper divisors (464431733680).

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

325722456320 is an equidigital number, since it uses as much as digits as its factorization.

325722456320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388 (or 4374 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 41.

The spelling of 325722456320 in words is "three hundred twenty-five billion, seven hundred twenty-two million, four hundred fifty-six thousand, three hundred twenty".