668114585 has 4 divisors (see below), whose sum is σ = 801737508. Its totient is φ = 534491664.

The previous prime is 668114567. The next prime is 668114617. The reversal of 668114585 is 585411866.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 370793536 + 297321049 = 19256^2 + 17243^2 .

It is a cyclic number.

It is not a de Polignac number, because 668114585 - 2⁸ = 668114329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 66811454 + ... + 66811463.

It is an arithmetic number, because the mean of its divisors is an integer number (200434377).

Almost surely, 2^668114585 is an apocalyptic number.

It is an amenable number.

668114585 is a deficient number, since it is larger than the sum of its proper divisors (133622923).

668114585 is a wasteful number, since it uses less digits than its factorization.

668114585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133622922.

The product of its digits is 230400, while the sum is 44.

The square root of 668114585 is about 25847.9125849652. The cubic root of 668114585 is about 874.2124440150.

The spelling of 668114585 in words is "six hundred sixty-eight million, one hundred fourteen thousand, five hundred eighty-five".