320495167408 has 80 divisors (see below), whose sum is σ = 702895386816. Its totient is φ = 140456448000.

The previous prime is 320495167301. The next prime is 320495167409. The reversal of 320495167408 is 804761594023.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (320495167409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410908 + ... + 899908.

It is a 1-persistent number, because it is pandigital, but 2⋅320495167408 = 640990334816 is not.

Almost surely, 2^320495167408 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 320495167408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351447693408).

320495167408 is an abundant number, since it is smaller than the sum of its proper divisors (382400219408).

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

320495167408 is a wasteful number, since it uses less digits than its factorization.

320495167408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489182 (or 489176 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 320495167408 in words is "three hundred twenty billion, four hundred ninety-five million, one hundred sixty-seven thousand, four hundred eight".