320451433425 has 36 divisors (see below), whose sum is σ = 579881318380. Its totient is φ = 169145487360.

The previous prime is 320451433411. The next prime is 320451433429. The reversal of 320451433425 is 524334154023.

It can be written as a sum of positive squares in 6 ways, for example, as 5666476176 + 314784957249 = 75276^2 + 561057^2 .

It is not a de Polignac number, because 320451433425 - 2¹⁶ = 320451367889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320451433425.

It is not an unprimeable number, because it can be changed into a prime (320451433429) 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 35 ways as a sum of consecutive naturals, for example, 7319560 + ... + 7363209.

Almost surely, 2^320451433425 is an apocalyptic number.

It is an amenable number.

320451433425 is a deficient number, since it is larger than the sum of its proper divisors (259429884955).

320451433425 is a wasteful number, since it uses less digits than its factorization.

320451433425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14682882 (or 14682874 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 320451433425 its reverse (524334154023), we get a palindrome (844785587448).

The spelling of 320451433425 in words is "three hundred twenty billion, four hundred fifty-one million, four hundred thirty-three thousand, four hundred twenty-five".