11668199 has 4 divisors (see below), whose sum is σ = 12175536. Its totient is φ = 11160864.

The previous prime is 11668193. The next prime is 11668229. The reversal of 11668199 is 99186611.

It is a happy number.

11668199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99186611 = 59 ⋅1681129.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11668199 is a prime.

It is a super-2 number, since 2×11668199² = 272293735807202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11668193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253634 + ... + 253679.

It is an arithmetic number, because the mean of its divisors is an integer number (3043884).

Almost surely, 2^11668199 is an apocalyptic number.

11668199 is a deficient number, since it is larger than the sum of its proper divisors (507337).

11668199 is an equidigital number, since it uses as much as digits as its factorization.

11668199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507336.

The product of its digits is 23328, while the sum is 41.

The square root of 11668199 is about 3415.8745585867. The cubic root of 11668199 is about 226.8129997515.

The spelling of 11668199 in words is "eleven million, six hundred sixty-eight thousand, one hundred ninety-nine".