320343143208 has 192 divisors, whose sum is σ = 923453291520. Its totient is φ = 91826179200.

The previous prime is 320343143167. The next prime is 320343143243. The reversal of 320343143208 is 802341343023.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75002113 + ... + 75006383.

It is an arithmetic number, because the mean of its divisors is an integer number (4809652560).

Almost surely, 2^320343143208 is an apocalyptic number.

320343143208 is a gapful number since it is divisible by the number (38) 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 320343143208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (461726645760).

320343143208 is an abundant number, since it is smaller than the sum of its proper divisors (603110148312).

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

320343143208 is a wasteful number, since it uses less digits than its factorization.

320343143208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5116 (or 5093 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

The spelling of 320343143208 in words is "three hundred twenty billion, three hundred forty-three million, one hundred forty-three thousand, two hundred eight".