320223426066443 has 4 divisors (see below), whose sum is σ = 320756243747688. Its totient is φ = 319690608385200.

The previous prime is 320223426066421. The next prime is 320223426066451. The reversal of 320223426066443 is 344660624322023.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320223426066443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320223426066043) 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, 266408839721 + ... + 266408840922.

It is an arithmetic number, because the mean of its divisors is an integer number (80189060936922).

Almost surely, 2^{320223426066443} is an apocalyptic number.

320223426066443 is a deficient number, since it is larger than the sum of its proper divisors (532817681245).

320223426066443 is an equidigital number, since it uses as much as digits as its factorization.

320223426066443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532817681244.

The product of its (nonzero) digits is 5971968, while the sum is 47.

The spelling of 320223426066443 in words is "three hundred twenty trillion, two hundred twenty-three billion, four hundred twenty-six million, sixty-six thousand, four hundred forty-three".