320053055999 has 4 divisors (see below), whose sum is σ = 330377348160. Its totient is φ = 309728763840.

The previous prime is 320053055951. The next prime is 320053056019. The reversal of 320053055999 is 999550350023.

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 320053055999 - 2²⁰ = 320052007423 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 (320053055909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5162146034 + ... + 5162146095.

It is an arithmetic number, because the mean of its divisors is an integer number (82594337040).

Almost surely, 2^320053055999 is an apocalyptic number.

320053055999 is a deficient number, since it is larger than the sum of its proper divisors (10324292161).

320053055999 is a wasteful number, since it uses less digits than its factorization.

320053055999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10324292160.

The product of its (nonzero) digits is 1640250, while the sum is 50.

The spelling of 320053055999 in words is "three hundred twenty billion, fifty-three million, fifty-five thousand, nine hundred ninety-nine".