318163664 has 240 divisors, whose sum is σ = 854945280. Its totient is φ = 113218560.

The previous prime is 318163663. The next prime is 318163673. The reversal of 318163664 is 466361813.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318163661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6003062 + ... + 6003114.

It is an arithmetic number, because the mean of its divisors is an integer number (3562272).

Almost surely, 2^318163664 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 318163664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427472640).

318163664 is an abundant number, since it is smaller than the sum of its proper divisors (536781616).

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

318163664 is a wasteful number, since it uses less digits than its factorization.

318163664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 125 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 318163664 is about 17837.1428205304. The cubic root of 318163664 is about 682.6794969479.

The spelling of 318163664 in words is "three hundred eighteen million, one hundred sixty-three thousand, six hundred sixty-four".