320237320832 has 128 divisors (see below), whose sum is σ = 753281424000. Its totient is φ = 133688586240.

The previous prime is 320237320829. The next prime is 320237320849. The reversal of 320237320832 is 238023732023.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 320237320792 and 320237320801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3598538 + ... + 3686454.

It is an arithmetic number, because the mean of its divisors is an integer number (5885011125).

Almost surely, 2^320237320832 is an apocalyptic number.

320237320832 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 320237320832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376640712000).

320237320832 is an abundant number, since it is smaller than the sum of its proper divisors (433044103168).

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

320237320832 is a wasteful number, since it uses less digits than its factorization.

320237320832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88154 (or 88142 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 35.

The spelling of 320237320832 in words is "three hundred twenty billion, two hundred thirty-seven million, three hundred twenty thousand, eight hundred thirty-two".