320692819088 has 60 divisors (see below), whose sum is σ = 664172161020. Its totient is φ = 149822910720.

The previous prime is 320692819063. The next prime is 320692819103. The reversal of 320692819088 is 880918296023.

It can be written as a sum of positive squares in 2 ways, for example, as 259985772544 + 60707046544 = 509888^2 + 246388^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86306 + ... + 805502.

It is an arithmetic number, because the mean of its divisors is an integer number (11069536017).

Almost surely, 2^320692819088 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 320692819088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332086080510).

320692819088 is an abundant number, since it is smaller than the sum of its proper divisors (343479341932).

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

320692819088 is a wasteful number, since it uses less digits than its factorization.

320692819088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719296 (or 719259 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 56.

The spelling of 320692819088 in words is "three hundred twenty billion, six hundred ninety-two million, eight hundred nineteen thousand, eighty-eight".