320061322512 has 120 divisors (see below), whose sum is σ = 960933704640. Its totient is φ = 103008205440.

The previous prime is 320061322501. The next prime is 320061322597. The reversal of 320061322512 is 215223160023.

It is a happy number.

320061322512 is a `hidden beast` number, since 3 + 20 + 0 + 613 + 2 + 25 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1306564 + ... + 1532067.

It is an arithmetic number, because the mean of its divisors is an integer number (8007780872).

Almost surely, 2^320061322512 is an apocalyptic number.

It is an amenable number.

320061322512 is an abundant number, since it is smaller than the sum of its proper divisors (640872382128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320061322512 is a wasteful number, since it uses less digits than its factorization.

320061322512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838683 (or 2838665 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 320061322512 its reverse (215223160023), we get a palindrome (535284482535).

The spelling of 320061322512 in words is "three hundred twenty billion, sixty-one million, three hundred twenty-two thousand, five hundred twelve".