320104352000 has 144 divisors (see below), whose sum is σ = 808656960384. Its totient is φ = 126237440000.

The previous prime is 320104351993. The next prime is 320104352027. The reversal of 320104352000 is 253401023.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2201555 + ... + 2342445.

It is an arithmetic number, because the mean of its divisors is an integer number (5615673336).

Almost surely, 2^320104352000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320104352000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404328480192).

320104352000 is an abundant number, since it is smaller than the sum of its proper divisors (488552608384).

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

320104352000 is an equidigital number, since it uses as much as digits as its factorization.

320104352000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140993 (or 140969 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 320104352000 its reverse (253401023), we get a palindrome (320357753023).

The spelling of 320104352000 in words is "three hundred twenty billion, one hundred four million, three hundred fifty-two thousand".