320546783232 has 540 divisors, whose sum is σ = 1057038517080. Its totient is φ = 93300719616.

The previous prime is 320546783209. The next prime is 320546783233. The reversal of 320546783232 is 232387645023.

320546783232 is a `hidden beast` number, since 3 + 2 + 0 + 546 + 7 + 83 + 23 + 2 = 666.

It is a super-3 number, since 3×320546783232³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320546783233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 473480878 + ... + 473481554.

Almost surely, 2^320546783232 is an apocalyptic number.

320546783232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320546783232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528519258540).

320546783232 is an abundant number, since it is smaller than the sum of its proper divisors (736491733848).

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

320546783232 is a wasteful number, since it uses less digits than its factorization.

320546783232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 320546783232 in words is "three hundred twenty billion, five hundred forty-six million, seven hundred eighty-three thousand, two hundred thirty-two".