668060866 has 32 divisors (see below), whose sum is σ = 1179370368. Its totient is φ = 280400640.

The previous prime is 668060851. The next prime is 668060923.

668060866 is nontrivially palindromic in base 10.

668060866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2971 + ... + 36673.

It is an arithmetic number, because the mean of its divisors is an integer number (36855324).

Almost surely, 2^668060866 is an apocalyptic number.

668060866 is a deficient number, since it is larger than the sum of its proper divisors (511309502).

668060866 is a wasteful number, since it uses less digits than its factorization.

668060866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33786.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 668060866 is about 25846.8734279410. The cubic root of 668060866 is about 874.1890133650.

The spelling of 668060866 in words is "six hundred sixty-eight million, sixty thousand, eight hundred sixty-six".