320528087104 has 21 divisors (see below), whose sum is σ = 636056910637. Its totient is φ = 160261778944.

The previous prime is 320528087083. The next prime is 320528087107. The reversal of 320528087104 is 401780825023.

It is a happy number.

The square root of 320528087104 is 566152.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 292196464704 + 28331622400 = 540552^2 + 168320^2 .

It is a super-2 number, since 2×320528087104² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320528087107) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4493832 + ... + 4564600.

Almost surely, 2^320528087104 is an apocalyptic number.

320528087104 is the 566152-nd square number.

It is an amenable number.

320528087104 is a deficient number, since it is larger than the sum of its proper divisors (315528823533).

320528087104 is an frugal number, since it uses more digits than its factorization.

320528087104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141550 (or 70771 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 320528087104 in words is "three hundred twenty billion, five hundred twenty-eight million, eighty-seven thousand, one hundred four".