320604413625 has 48 divisors (see below), whose sum is σ = 583665303312. Its totient is φ = 169296000000.

The previous prime is 320604413621. The next prime is 320604413651. The reversal of 320604413625 is 526314406023.

320604413625 is a `hidden beast` number, since 3 + 2 + 0 + 604 + 41 + 3 + 6 + 2 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 3968622009 + 316635791616 = 62997^2 + 562704^2 .

It is not a de Polignac number, because 320604413625 - 2² = 320604413621 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 320604413625.

It is not an unprimeable number, because it can be changed into a prime (320604413621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1297176 + ... + 1524425.

It is an arithmetic number, because the mean of its divisors is an integer number (12159693819).

Almost surely, 2^320604413625 is an apocalyptic number.

It is an amenable number.

320604413625 is a deficient number, since it is larger than the sum of its proper divisors (263060889687).

320604413625 is a wasteful number, since it uses less digits than its factorization.

320604413625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821723 (or 2821710 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 320604413625 its reverse (526314406023), we get a palindrome (846918819648).

The spelling of 320604413625 in words is "three hundred twenty billion, six hundred four million, four hundred thirteen thousand, six hundred twenty-five".