320669839868 has 12 divisors (see below), whose sum is σ = 641339679792. Its totient is φ = 137429931360.

The previous prime is 320669839783. The next prime is 320669839879. The reversal of 320669839868 is 868938966023.

320669839868 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 320669839798 and 320669839807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5726247113 + ... + 5726247168.

It is an arithmetic number, because the mean of its divisors is an integer number (53444973316).

Almost surely, 2^320669839868 is an apocalyptic number.

It is an amenable number.

320669839868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

320669839868 is a wasteful number, since it uses less digits than its factorization.

320669839868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11452494292 (or 11452494290 counting only the distinct ones).

The product of its (nonzero) digits is 161243136, while the sum is 68.

The spelling of 320669839868 in words is "three hundred twenty billion, six hundred sixty-nine million, eight hundred thirty-nine thousand, eight hundred sixty-eight".