668282866 has 8 divisors (see below), whose sum is σ = 1025736624. Its totient is φ = 326370660.

The previous prime is 668282861. The next prime is 668282891.

668282866 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (668282861) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3885280 + ... + 3885451.

It is an arithmetic number, because the mean of its divisors is an integer number (128217078).

Almost surely, 2^668282866 is an apocalyptic number.

668282866 is a deficient number, since it is larger than the sum of its proper divisors (357453758).

668282866 is a wasteful number, since it uses less digits than its factorization.

668282866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770776.

The product of its digits is 2654208, while the sum is 52.

The square root of 668282866 is about 25851.1675945208. The cubic root of 668282866 is about 874.2858351158.

The spelling of 668282866 in words is "six hundred sixty-eight million, two hundred eighty-two thousand, eight hundred sixty-six".