320681407008 has 96 divisors (see below), whose sum is σ = 870984878400. Its totient is φ = 103187782656.

The previous prime is 320681407001. The next prime is 320681407031. The reversal of 320681407008 is 800704186023.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×320681407008³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (320681407001) 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, 22429110 + ... + 22443402.

It is an arithmetic number, because the mean of its divisors is an integer number (9072759150).

Almost surely, 2^320681407008 is an apocalyptic number.

It is an amenable number.

320681407008 is an abundant number, since it is smaller than the sum of its proper divisors (550303471392).

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

320681407008 is a wasteful number, since it uses less digits than its factorization.

320681407008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22394 (or 22386 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 320681407008 in words is "three hundred twenty billion, six hundred eighty-one million, four hundred seven thousand, eight".