318716664 has 64 divisors (see below), whose sum is σ = 912172800. Its totient is φ = 90906624.

The previous prime is 318716653. The next prime is 318716701. The reversal of 318716664 is 466617813.

It is a super-2 number, since 2×318716664² = 203160623822577792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 127959 + ... + 130425.

It is an arithmetic number, because the mean of its divisors is an integer number (14252700).

Almost surely, 2^318716664 is an apocalyptic number.

It is an amenable number.

318716664 is an abundant number, since it is smaller than the sum of its proper divisors (593456136).

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

318716664 is a wasteful number, since it uses less digits than its factorization.

318716664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3252 (or 3248 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 318716664 is about 17852.6374522086. The cubic root of 318716664 is about 683.0747895724.

The spelling of 318716664 in words is "three hundred eighteen million, seven hundred sixteen thousand, six hundred sixty-four".