320303552445 has 24 divisors (see below), whose sum is σ = 575755523616. Its totient is φ = 170828560656.

The previous prime is 320303552441. The next prime is 320303552519. The reversal of 320303552445 is 544255303023.

320303552445 is a `hidden beast` number, since 3 + 203 + 0 + 3 + 5 + 5 + 2 + 445 = 666.

It is not a de Polignac number, because 320303552445 - 2² = 320303552441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320303552441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131810947 + ... + 131813376.

It is an arithmetic number, because the mean of its divisors is an integer number (23989813484).

Almost surely, 2^320303552445 is an apocalyptic number.

It is an amenable number.

320303552445 is a deficient number, since it is larger than the sum of its proper divisors (255451971171).

320303552445 is an equidigital number, since it uses as much as digits as its factorization.

320303552445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263624343 (or 263624331 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 36.

Adding to 320303552445 its reverse (544255303023), we get a palindrome (864558855468).

The spelling of 320303552445 in words is "three hundred twenty billion, three hundred three million, five hundred fifty-two thousand, four hundred forty-five".