320563513449 has 12 divisors (see below), whose sum is σ = 483168194496. Its totient is φ = 204417312792.

The previous prime is 320563513441. The next prime is 320563513477. The reversal of 320563513449 is 944315365023.

320563513449 is a `hidden beast` number, since 3 + 2 + 0 + 5 + 635 + 1 + 3 + 4 + 4 + 9 = 666.

It is not a de Polignac number, because 320563513449 - 2³ = 320563513441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320563513441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 774307797 + ... + 774308210.

It is an arithmetic number, because the mean of its divisors is an integer number (40264016208).

Almost surely, 2^320563513449 is an apocalyptic number.

It is an amenable number.

320563513449 is a deficient number, since it is larger than the sum of its proper divisors (162604681047).

320563513449 is a wasteful number, since it uses less digits than its factorization.

320563513449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548616036 (or 1548616033 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 320563513449 in words is "three hundred twenty billion, five hundred sixty-three million, five hundred thirteen thousand, four hundred forty-nine".