320117565205 has 8 divisors (see below), whose sum is σ = 388769284512. Its totient is φ = 253008581328.

The previous prime is 320117565197. The next prime is 320117565211. The reversal of 320117565205 is 502565711023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320117565205 - 2³ = 320117565197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 385683399 + ... + 385684228.

It is an arithmetic number, because the mean of its divisors is an integer number (48596160564).

Almost surely, 2^320117565205 is an apocalyptic number.

It is an amenable number.

320117565205 is a deficient number, since it is larger than the sum of its proper divisors (68651719307).

320117565205 is an equidigital number, since it uses as much as digits as its factorization.

320117565205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771367715.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 320117565205 in words is "three hundred twenty billion, one hundred seventeen million, five hundred sixty-five thousand, two hundred five".