320343057617063 has 4 divisors (see below), whose sum is σ = 344984831279928. Its totient is φ = 295701283954200.

The previous prime is 320343057617057. The next prime is 320343057617129. The reversal of 320343057617063 is 360716750343023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320343057617063 - 2³⁴ = 320325877747879 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 (320343057617563) 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, 12320886831413 + ... + 12320886831438.

It is an arithmetic number, because the mean of its divisors is an integer number (86246207819982).

Almost surely, 2^{320343057617063} is an apocalyptic number.

320343057617063 is a deficient number, since it is larger than the sum of its proper divisors (24641773662865).

320343057617063 is a wasteful number, since it uses less digits than its factorization.

320343057617063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24641773662864.

The product of its (nonzero) digits is 5715360, while the sum is 50.

The spelling of 320343057617063 in words is "three hundred twenty trillion, three hundred forty-three billion, fifty-seven million, six hundred seventeen thousand, sixty-three".