320118568 has 144 divisors (see below), whose sum is σ = 814654260. Its totient is φ = 117089280.

The previous prime is 320118553. The next prime is 320118583. The reversal of 320118568 is 865811023.

It is an interprime number because it is at equal distance from previous prime (320118553) and next prime (320118583).

It can be written as a sum of positive squares in 2 ways, for example, as 302829604 + 17288964 = 17402^2 + 4158^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

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 35 ways as a sum of consecutive naturals, for example, 806146 + ... + 806542.

Almost surely, 2^320118568 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 320118568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407327130).

320118568 is an abundant number, since it is smaller than the sum of its proper divisors (494535692).

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

320118568 is a wasteful number, since it uses less digits than its factorization.

320118568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 320118568 is about 17891.8575894176. The cubic root of 320118568 is about 684.0748467507.

The spelling of 320118568 in words is "three hundred twenty million, one hundred eighteen thousand, five hundred sixty-eight".