11666668 has 12 divisors (see below), whose sum is σ = 21987280. Its totient is φ = 5384592.

The previous prime is 11666663. The next prime is 11666689. The reversal of 11666668 is 86666611.

It is a super-2 number, since 2×11666668² = 272222284444448, which contains 22 as substring.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 11666668.

It is not an unprimeable number, because it can be changed into a prime (11666663) 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, 112128 + ... + 112231.

Almost surely, 2^11666668 is an apocalyptic number.

It is an amenable number.

11666668 is a deficient number, since it is larger than the sum of its proper divisors (10320612).

11666668 is a wasteful number, since it uses less digits than its factorization.

11666668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224376 (or 224374 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 11666668 is about 3415.6504504999. The cubic root of 11666668 is about 226.8030791719.

The spelling of 11666668 in words is "eleven million, six hundred sixty-six thousand, six hundred sixty-eight".