320605633373 has 2 divisors, whose sum is σ = 320605633374. Its totient is φ = 320605633372.

The previous prime is 320605633367. The next prime is 320605633457. The reversal of 320605633373 is 373336506023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164281870489 + 156323762884 = 405317^2 + 395378^2 .

It is a cyclic number.

It is not a de Polignac number, because 320605633373 - 2¹⁶ = 320605567837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320605633373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320605633333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160302816686 + 160302816687.

It is an arithmetic number, because the mean of its divisors is an integer number (160302816687).

Almost surely, 2^320605633373 is an apocalyptic number.

It is an amenable number.

320605633373 is a deficient number, since it is larger than the sum of its proper divisors (1).

320605633373 is an equidigital number, since it uses as much as digits as its factorization.

320605633373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 612360, while the sum is 41.

The spelling of 320605633373 in words is "three hundred twenty billion, six hundred five million, six hundred thirty-three thousand, three hundred seventy-three".