320803351752 has 128 divisors (see below), whose sum is σ = 887983810560. Its totient is φ = 95955390720.

The previous prime is 320803351751. The next prime is 320803351769. The reversal of 320803351752 is 257153308023.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 320803351752.

It is not an unprimeable number, because it can be changed into a prime (320803351751) 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 31 ways as a sum of consecutive naturals, for example, 2774113 + ... + 2887439.

It is an arithmetic number, because the mean of its divisors is an integer number (6937373520).

Almost surely, 2^320803351752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320803351752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443991905280).

320803351752 is an abundant number, since it is smaller than the sum of its proper divisors (567180458808).

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

320803351752 is a wasteful number, since it uses less digits than its factorization.

320803351752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113603 (or 113599 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

Adding to 320803351752 its reverse (257153308023), we get a palindrome (577956659775).

The spelling of 320803351752 in words is "three hundred twenty billion, eight hundred three million, three hundred fifty-one thousand, seven hundred fifty-two".