320606616 has 64 divisors (see below), whose sum is σ = 876199680. Its totient is φ = 96951680.

The previous prime is 320606609. The next prime is 320606617. The reversal of 320606616 is 616606023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320606617) 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 15 ways as a sum of consecutive naturals, for example, 169870 + ... + 171746.

It is an arithmetic number, because the mean of its divisors is an integer number (13690620).

Almost surely, 2^320606616 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 320606616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438099840).

320606616 is an abundant number, since it is smaller than the sum of its proper divisors (555593064).

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

320606616 is a wasteful number, since it uses less digits than its factorization.

320606616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544 (or 2540 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 320606616 is about 17905.4912247612. The cubic root of 320606616 is about 684.4223136698.

The spelling of 320606616 in words is "three hundred twenty million, six hundred six thousand, six hundred sixteen".