320104434405660 has 48 divisors (see below), whose sum is σ = 898117859221632. Its totient is φ = 85187330804800.

The previous prime is 320104434405611. The next prime is 320104434405671. The reversal of 320104434405660 is 66504434401023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5432836026 + ... + 5432894945.

It is an arithmetic number, because the mean of its divisors is an integer number (18710788733784).

Almost surely, 2^{320104434405660} is an apocalyptic number.

320104434405660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320104434405660 is an abundant number, since it is smaller than the sum of its proper divisors (578013424815972).

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

320104434405660 is a wasteful number, since it uses less digits than its factorization.

320104434405660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10865731474 (or 10865731472 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

Adding to 320104434405660 its reverse (66504434401023), we get a palindrome (386608868806683).

The spelling of 320104434405660 in words is "three hundred twenty trillion, one hundred four billion, four hundred thirty-four million, four hundred five thousand, six hundred sixty".