325398215520 has 480 divisors, whose sum is σ = 1313965654848. Its totient is φ = 74290286592.

The previous prime is 325398215507. The next prime is 325398215521. The reversal of 325398215520 is 25512893523.

325398215520 is a `hidden beast` number, since 3 + 2 + 5 + 3 + 98 + 2 + 1 + 552 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325398215521) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 110041882 + ... + 110044838.

Almost surely, 2^325398215520 is an apocalyptic number.

325398215520 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 325398215520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656982827424).

325398215520 is an abundant number, since it is smaller than the sum of its proper divisors (988567439328).

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

325398215520 is a wasteful number, since it uses less digits than its factorization.

325398215520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204 (or 4187 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 325398215520 in words is "three hundred twenty-five billion, three hundred ninety-eight million, two hundred fifteen thousand, five hundred twenty".