320963809866416 has 20 divisors (see below), whose sum is σ = 621954246956400. Its totient is φ = 160459488071232.

The previous prime is 320963809866407. The next prime is 320963809866419. The reversal of 320963809866416 is 614668908369023.

It is a self number, because there is not a number n which added to its sum of digits gives 320963809866416.

It is not an unprimeable number, because it can be changed into a prime (320963809866419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1400935751 + ... + 1401164838.

It is an arithmetic number, because the mean of its divisors is an integer number (31097712347820).

Almost surely, 2^{320963809866416} is an apocalyptic number.

It is an amenable number.

320963809866416 is a deficient number, since it is larger than the sum of its proper divisors (300990437089984).

320963809866416 is a wasteful number, since it uses less digits than its factorization.

320963809866416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802107756 (or 2802107750 counting only the distinct ones).

The product of its (nonzero) digits is 483729408, while the sum is 71.

The spelling of 320963809866416 in words is "three hundred twenty trillion, nine hundred sixty-three billion, eight hundred nine million, eight hundred sixty-six thousand, four hundred sixteen".