325140512220 has 288 divisors, whose sum is σ = 1026028523520. Its totient is φ = 83255040000.

The previous prime is 325140512219. The next prime is 325140512231. The reversal of 325140512220 is 22215041523.

325140512220 is a `hidden beast` number, since 3 + 2 + 5 + 140 + 512 + 2 + 2 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 740638761 + ... + 740639199.

It is an arithmetic number, because the mean of its divisors is an integer number (3562599040).

Almost surely, 2^325140512220 is an apocalyptic number.

325140512220 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 325140512220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (513014261760).

325140512220 is an abundant number, since it is smaller than the sum of its proper divisors (700888011300).

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

325140512220 is a wasteful number, since it uses less digits than its factorization.

325140512220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217 (or 1212 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 325140512220 its reverse (22215041523), we get a palindrome (347355553743).

The spelling of 325140512220 in words is "three hundred twenty-five billion, one hundred forty million, five hundred twelve thousand, two hundred twenty".