320256648463 has 16 divisors (see below), whose sum is σ = 338765476320. Its totient is φ = 301916491776.

The previous prime is 320256648457. The next prime is 320256648479. The reversal of 320256648463 is 364846652023.

It is a cyclic number.

It is not a de Polignac number, because 320256648463 - 2¹⁷ = 320256517391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320256648263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3429195 + ... + 3521347.

It is an arithmetic number, because the mean of its divisors is an integer number (21172842270).

Almost surely, 2^320256648463 is an apocalyptic number.

320256648463 is a deficient number, since it is larger than the sum of its proper divisors (18508827857).

320256648463 is a wasteful number, since it uses less digits than its factorization.

320256648463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93066.

The product of its (nonzero) digits is 4976640, while the sum is 49.

The spelling of 320256648463 in words is "three hundred twenty billion, two hundred fifty-six million, six hundred forty-eight thousand, four hundred sixty-three".