325520356315440 has 480 divisors, whose sum is σ = 1194614127802368. Its totient is φ = 72837535795200.

The previous prime is 325520356315423. The next prime is 325520356315457. The reversal of 325520356315440 is 44513653025523.

It is an interprime number because it is at equal distance from previous prime (325520356315423) and next prime (325520356315457).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 325520356315440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5574808645 + ... + 5574867035.

Almost surely, 2^{325520356315440} is an apocalyptic number.

325520356315440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325520356315440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597307063901184).

325520356315440 is an abundant number, since it is smaller than the sum of its proper divisors (869093771486928).

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

325520356315440 is a wasteful number, since it uses less digits than its factorization.

325520356315440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73209 (or 73192 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 48.

The spelling of 325520356315440 in words is "three hundred twenty-five trillion, five hundred twenty billion, three hundred fifty-six million, three hundred fifteen thousand, four hundred forty".