320343726626623 has 16 divisors (see below), whose sum is σ = 382049203898880. Its totient is φ = 262625295483936.

The previous prime is 320343726626537. The next prime is 320343726626641. The reversal of 320343726626623 is 326626627343023.

It is not a de Polignac number, because 320343726626623 - 2²¹ = 320343724529471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320343726626423) 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, 60977728 + ... + 66022501.

It is an arithmetic number, because the mean of its divisors is an integer number (23878075243680).

Almost surely, 2^{320343726626623} is an apocalyptic number.

320343726626623 is a deficient number, since it is larger than the sum of its proper divisors (61705477272257).

320343726626623 is a wasteful number, since it uses less digits than its factorization.

320343726626623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127015926.

The product of its (nonzero) digits is 47029248, while the sum is 55.

The spelling of 320343726626623 in words is "three hundred twenty trillion, three hundred forty-three billion, seven hundred twenty-six million, six hundred twenty-six thousand, six hundred twenty-three".