320494388359608 has 96 divisors (see below), whose sum is σ = 872902520904960. Its totient is φ = 106229220898560.

The previous prime is 320494388359583. The next prime is 320494388359667. The reversal of 320494388359608 is 806953883494023.

It is a happy number.

320494388359608 is a `hidden beast` number, since 3 + 2 + 0 + 4 + 9 + 4 + 3 + 8 + 8 + 3 + 5 + 9 + 608 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29359366 + ... + 38768042.

It is an arithmetic number, because the mean of its divisors is an integer number (9092734592760).

Almost surely, 2^{320494388359608} 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 320494388359608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436451260452480).

320494388359608 is an abundant number, since it is smaller than the sum of its proper divisors (552408132545352).

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

320494388359608 is a wasteful number, since it uses less digits than its factorization.

320494388359608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9411357 (or 9411350 counting only the distinct ones).

The product of its (nonzero) digits is 1074954240, while the sum is 72.

The spelling of 320494388359608 in words is "three hundred twenty trillion, four hundred ninety-four billion, three hundred eighty-eight million, three hundred fifty-nine thousand, six hundred eight".