268665899 has 8 divisors (see below), whose sum is σ = 273814320. Its totient is φ = 263541600.

The previous prime is 268665883. The next prime is 268665919. The reversal of 268665899 is 998566862.

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 268665899 - 2⁴ = 268665883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268665869) 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, 17309 + ... + 28929.

It is an arithmetic number, because the mean of its divisors is an integer number (34226790).

Almost surely, 2^268665899 is an apocalyptic number.

268665899 is a deficient number, since it is larger than the sum of its proper divisors (5148421).

268665899 is a wasteful number, since it uses less digits than its factorization.

268665899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12061.

The product of its digits is 11197440, while the sum is 59.

The square root of 268665899 is about 16391.0310535976. The cubic root of 268665899 is about 645.2641179411.

The spelling of 268665899 in words is "two hundred sixty-eight million, six hundred sixty-five thousand, eight hundred ninety-nine".