320886766456 has 8 divisors (see below), whose sum is σ = 601662687120. Its totient is φ = 160443383224.

The previous prime is 320886766429. The next prime is 320886766457. The reversal of 320886766456 is 654667688023.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 320886766394 and 320886766403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320886766457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20055422896 + ... + 20055422911.

It is an arithmetic number, because the mean of its divisors is an integer number (75207835890).

Almost surely, 2^320886766456 is an apocalyptic number.

It is an amenable number.

320886766456 is a deficient number, since it is larger than the sum of its proper divisors (280775920664).

320886766456 is a wasteful number, since it uses less digits than its factorization.

320886766456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40110845813 (or 40110845809 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 61.

The spelling of 320886766456 in words is "three hundred twenty billion, eight hundred eighty-six million, seven hundred sixty-six thousand, four hundred fifty-six".