664316016 has 120 divisors (see below), whose sum is σ = 2123971200. Its totient is φ = 175189248.

The previous prime is 664316011. The next prime is 664316041. The reversal of 664316016 is 610613466.

It is a super-2 number, since 2×664316016² = 882631538228224512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664316011) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 50935 + ... + 62633.

It is an arithmetic number, because the mean of its divisors is an integer number (17699760).

Almost surely, 2^664316016 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 664316016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1061985600).

664316016 is an abundant number, since it is smaller than the sum of its proper divisors (1459655184).

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

664316016 is a wasteful number, since it uses less digits than its factorization.

664316016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11743 (or 11724 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 664316016 is about 25774.3286236519. The cubic root of 664316016 is about 872.5525143609.

The spelling of 664316016 in words is "six hundred sixty-four million, three hundred sixteen thousand, sixteen".