320256822613 has 8 divisors (see below), whose sum is σ = 394162243328. Its totient is φ = 253390013424.

The previous prime is 320256822559. The next prime is 320256822631. The reversal of 320256822613 is 316228652023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320256822613 - 2¹³ = 320256814421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320256822113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1759652781 + ... + 1759652962.

It is an arithmetic number, because the mean of its divisors is an integer number (49270280416).

Almost surely, 2^320256822613 is an apocalyptic number.

It is an amenable number.

320256822613 is a deficient number, since it is larger than the sum of its proper divisors (73905420715).

320256822613 is a wasteful number, since it uses less digits than its factorization.

320256822613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3519305763.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 320256822613 in words is "three hundred twenty billion, two hundred fifty-six million, eight hundred twenty-two thousand, six hundred thirteen".