320403453345 has 48 divisors (see below), whose sum is σ = 568994654592. Its totient is φ = 166738037760.

The previous prime is 320403453323. The next prime is 320403453361. The reversal of 320403453345 is 543354304023.

It is not a de Polignac number, because 320403453345 - 2⁹ = 320403452833 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 207007 + ... + 826836.

It is an arithmetic number, because the mean of its divisors is an integer number (11854055304).

Almost surely, 2^320403453345 is an apocalyptic number.

It is an amenable number.

320403453345 is a deficient number, since it is larger than the sum of its proper divisors (248591201247).

320403453345 is a wasteful number, since it uses less digits than its factorization.

320403453345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034022 (or 1034019 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 36.

Adding to 320403453345 its reverse (543354304023), we get a palindrome (863757757368).

The spelling of 320403453345 in words is "three hundred twenty billion, four hundred three million, four hundred fifty-three thousand, three hundred forty-five".