668063299 has 8 divisors (see below), whose sum is σ = 690480000. Its totient is φ = 645700800.

The previous prime is 668063287. The next prime is 668063317. The reversal of 668063299 is 992360866.

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 668063299 - 2⁷ = 668063171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668063219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12327 + ... + 38575.

It is an arithmetic number, because the mean of its divisors is an integer number (86310000).

Almost surely, 2^668063299 is an apocalyptic number.

668063299 is a deficient number, since it is larger than the sum of its proper divisors (22416701).

668063299 is a wasteful number, since it uses less digits than its factorization.

668063299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27101.

The product of its (nonzero) digits is 839808, while the sum is 49.

The square root of 668063299 is about 25846.9204935520. The cubic root of 668063299 is about 874.1900745953.

The spelling of 668063299 in words is "six hundred sixty-eight million, sixty-three thousand, two hundred ninety-nine".