668960411 has 8 divisors (see below), whose sum is σ = 768798720. Its totient is φ = 570190248.

The previous prime is 668960399. The next prime is 668960419. The reversal of 668960411 is 114069866.

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

It is a cyclic number.

It is not a de Polignac number, because 668960411 - 2¹⁸ = 668698267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668960419) 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 7 ways as a sum of consecutive naturals, for example, 265691 + ... + 268196.

It is an arithmetic number, because the mean of its divisors is an integer number (96099840).

Almost surely, 2^668960411 is an apocalyptic number.

668960411 is a deficient number, since it is larger than the sum of its proper divisors (99838309).

668960411 is a wasteful number, since it uses less digits than its factorization.

668960411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534073.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 668960411 is about 25864.2690018489. The cubic root of 668960411 is about 874.5812030138.

The spelling of 668960411 in words is "six hundred sixty-eight million, nine hundred sixty thousand, four hundred eleven".