320369706722 has 54 divisors (see below), whose sum is σ = 553079416419. Its totient is φ = 139088277120.

The previous prime is 320369706719. The next prime is 320369706749. The reversal of 320369706722 is 227607963023.

It can be written as a sum of positive squares in 5 ways, for example, as 129880231321 + 190489475401 = 360389^2 + 436451^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=400231.

It is a Duffinian 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 26 ways as a sum of consecutive naturals, for example, 176901197 + ... + 176903007.

Almost surely, 2^320369706722 is an apocalyptic number.

320369706722 is a deficient number, since it is larger than the sum of its proper divisors (232709709697).

320369706722 is an equidigital number, since it uses as much as digits as its factorization.

320369706722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3684 (or 1843 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 47.

The spelling of 320369706722 in words is "three hundred twenty billion, three hundred sixty-nine million, seven hundred six thousand, seven hundred twenty-two".