325564345320 has 128 divisors (see below), whose sum is σ = 1003436864640. Its totient is φ = 84441553920.

The previous prime is 325564345319. The next prime is 325564345339. The reversal of 325564345320 is 23543465523.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14778634 + ... + 14800646.

It is an arithmetic number, because the mean of its divisors is an integer number (7839350505).

Almost surely, 2^325564345320 is an apocalyptic number.

325564345320 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 325564345320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501718432320).

325564345320 is an abundant number, since it is smaller than the sum of its proper divisors (677872519320).

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

325564345320 is a wasteful number, since it uses less digits than its factorization.

325564345320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25395 (or 25391 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 42.

The spelling of 325564345320 in words is "three hundred twenty-five billion, five hundred sixty-four million, three hundred forty-five thousand, three hundred twenty".