325204665720 has 64 divisors (see below), whose sum is σ = 1064306183040. Its totient is φ = 78837494400.

The previous prime is 325204665691. The next prime is 325204665761. The reversal of 325204665720 is 27566402523.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123182266 + ... + 123184905.

It is an arithmetic number, because the mean of its divisors is an integer number (16629784110).

Almost surely, 2^325204665720 is an apocalyptic number.

325204665720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

325204665720 is an abundant number, since it is smaller than the sum of its proper divisors (739101517320).

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

325204665720 is a wasteful number, since it uses less digits than its factorization.

325204665720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246367196 (or 246367192 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 42.

The spelling of 325204665720 in words is "three hundred twenty-five billion, two hundred four million, six hundred sixty-five thousand, seven hundred twenty".