320063929866 has 24 divisors (see below), whose sum is σ = 693525686880. Its totient is φ = 106679693736.

The previous prime is 320063929781. The next prime is 320063929877. The reversal of 320063929866 is 668929360023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 449686 + ... + 917793.

It is an arithmetic number, because the mean of its divisors is an integer number (28896903620).

Almost surely, 2^320063929866 is an apocalyptic number.

320063929866 is an abundant number, since it is smaller than the sum of its proper divisors (373461757014).

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

320063929866 is a wasteful number, since it uses less digits than its factorization.

320063929866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380490 (or 1380487 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 54.

The spelling of 320063929866 in words is "three hundred twenty billion, sixty-three million, nine hundred twenty-nine thousand, eight hundred sixty-six".