320790946205 has 4 divisors (see below), whose sum is σ = 384949135452. Its totient is φ = 256632756960.

The previous prime is 320790946199. The next prime is 320790946213. The reversal of 320790946205 is 502649097023.

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

It can be written as a sum of positive squares in 2 ways, for example, as 129063436516 + 191727509689 = 359254^2 + 437867^2 .

It is not a de Polignac number, because 320790946205 - 2⁶ = 320790946141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 320790946205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32079094616 + ... + 32079094625.

It is an arithmetic number, because the mean of its divisors is an integer number (96237283863).

Almost surely, 2^320790946205 is an apocalyptic number.

It is an amenable number.

320790946205 is a deficient number, since it is larger than the sum of its proper divisors (64158189247).

320790946205 is an equidigital number, since it uses as much as digits as its factorization.

320790946205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64158189246.

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 320790946205 in words is "three hundred twenty billion, seven hundred ninety million, nine hundred forty-six thousand, two hundred five".