664316343 has 8 divisors (see below), whose sum is σ = 984172400. Its totient is φ = 442877544.

The previous prime is 664316339. The next prime is 664316353. The reversal of 664316343 is 343613466.

664316343 is a `hidden beast` number, since 6 + 643 + 1 + 6 + 3 + 4 + 3 = 666.

It is not a de Polignac number, because 664316343 - 2² = 664316339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 664316298 and 664316307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664316353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12302128 + ... + 12302181.

It is an arithmetic number, because the mean of its divisors is an integer number (123021550).

Almost surely, 2^664316343 is an apocalyptic number.

664316343 is a deficient number, since it is larger than the sum of its proper divisors (319856057).

664316343 is a wasteful number, since it uses less digits than its factorization.

664316343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24604318 (or 24604312 counting only the distinct ones).

The product of its digits is 93312, while the sum is 36.

The square root of 664316343 is about 25774.3349671723. The cubic root of 664316343 is about 872.5526575280.

The spelling of 664316343 in words is "six hundred sixty-four million, three hundred sixteen thousand, three hundred forty-three".