320642646246023 has 4 divisors (see below), whose sum is σ = 339503978378160. Its totient is φ = 301781314113888.

The previous prime is 320642646245951. The next prime is 320642646246047.

It is a happy number.

320642646246023 is nontrivially palindromic in base 10.

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 320642646246023 - 2⁸ = 320642646245767 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 (320642646246323) 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, 9430666066043 + ... + 9430666066076.

It is an arithmetic number, because the mean of its divisors is an integer number (84875994594540).

Almost surely, 2^{320642646246023} is an apocalyptic number.

320642646246023 is a deficient number, since it is larger than the sum of its proper divisors (18861332132137).

320642646246023 is a wasteful number, since it uses less digits than its factorization.

320642646246023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18861332132136.

The product of its (nonzero) digits is 11943936, while the sum is 50.

The spelling of 320642646246023 in words is "three hundred twenty trillion, six hundred forty-two billion, six hundred forty-six million, two hundred forty-six thousand, twenty-three".