668343275 has 24 divisors (see below), whose sum is σ = 844477200. Its totient is φ = 524620800.

The previous prime is 668343257. The next prime is 668343311. The reversal of 668343275 is 572343866.

It is not a de Polignac number, because 668343275 - 2¹⁰ = 668342251 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 308195 + ... + 310355.

It is an arithmetic number, because the mean of its divisors is an integer number (35186550).

Almost surely, 2^668343275 is an apocalyptic number.

668343275 is a deficient number, since it is larger than the sum of its proper divisors (176133925).

668343275 is a wasteful number, since it uses less digits than its factorization.

668343275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399 (or 2394 counting only the distinct ones).

The product of its digits is 725760, while the sum is 44.

The square root of 668343275 is about 25852.3359679546. The cubic root of 668343275 is about 874.3121778241.

The spelling of 668343275 in words is "six hundred sixty-eight million, three hundred forty-three thousand, two hundred seventy-five".