320172248223528 has 16 divisors (see below), whose sum is σ = 800430620558880. Its totient is φ = 106724082741168.

The previous prime is 320172248223521. The next prime is 320172248223613. The reversal of 320172248223528 is 825322842271023.

It is not an unprimeable number, because it can be changed into a prime (320172248223521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6670255171300 + ... + 6670255171347.

It is an arithmetic number, because the mean of its divisors is an integer number (50026913784930).

Almost surely, 2^{320172248223528} is an apocalyptic number.

It is an amenable number.

320172248223528 is an abundant number, since it is smaller than the sum of its proper divisors (480258372335352).

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

320172248223528 is a wasteful number, since it uses less digits than its factorization.

320172248223528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13340510342656 (or 13340510342652 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 51.

The spelling of 320172248223528 in words is "three hundred twenty trillion, one hundred seventy-two billion, two hundred forty-eight million, two hundred twenty-three thousand, five hundred twenty-eight".