320320162453 has 2 divisors, whose sum is σ = 320320162454. Its totient is φ = 320320162452.

The previous prime is 320320162441. The next prime is 320320162469. The reversal of 320320162453 is 354261023023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215005633969 + 105314528484 = 463687^2 + 324522^2 .

It is a cyclic number.

It is not a de Polignac number, because 320320162453 - 2²⁵ = 320286608021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320320162403) by changing a digit.

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 as a sum of consecutive naturals, namely, 160160081226 + 160160081227.

It is an arithmetic number, because the mean of its divisors is an integer number (160160081227).

Almost surely, 2^320320162453 is an apocalyptic number.

It is an amenable number.

320320162453 is a deficient number, since it is larger than the sum of its proper divisors (1).

320320162453 is an equidigital number, since it uses as much as digits as its factorization.

320320162453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 320320162453 its reverse (354261023023), we get a palindrome (674581185476).

The spelling of 320320162453 in words is "three hundred twenty billion, three hundred twenty million, one hundred sixty-two thousand, four hundred fifty-three".