320221703546704 has 20 divisors (see below), whose sum is σ = 626572417462740. Its totient is φ = 158525595814400.

The previous prime is 320221703546699. The next prime is 320221703546711. The reversal of 320221703546704 is 407645307122023.

It can be written as a sum of positive squares in 2 ways, for example, as 220452769913104 + 99768933633600 = 14847652^2 + 9988440^2 .

It is a super-2 number, since 2×320221703546704² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99078495769 + ... + 99078499000.

It is an arithmetic number, because the mean of its divisors is an integer number (31328620873137).

Almost surely, 2^{320221703546704} is an apocalyptic number.

It is an amenable number.

320221703546704 is a deficient number, since it is larger than the sum of its proper divisors (306350713916036).

320221703546704 is a wasteful number, since it uses less digits than its factorization.

320221703546704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198156994878 (or 198156994872 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 46.

The spelling of 320221703546704 in words is "three hundred twenty trillion, two hundred twenty-one billion, seven hundred three million, five hundred forty-six thousand, seven hundred four".