11666117 has 2 divisors, whose sum is σ = 11666118. Its totient is φ = 11666116.

The previous prime is 11666113. The next prime is 11666141. The reversal of 11666117 is 71166611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8755681 + 2910436 = 2959^2 + 1706^2 .

It is a cyclic number.

It is not a de Polignac number, because 11666117 - 2² = 11666113 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11666117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11666111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5833058 + 5833059.

It is an arithmetic number, because the mean of its divisors is an integer number (5833059).

Almost surely, 2^11666117 is an apocalyptic number.

It is an amenable number.

11666117 is a deficient number, since it is larger than the sum of its proper divisors (1).

11666117 is an equidigital number, since it uses as much as digits as its factorization.

11666117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 29.

The square root of 11666117 is about 3415.5697914111. The cubic root of 11666117 is about 226.7995085876.

The spelling of 11666117 in words is "eleven million, six hundred sixty-six thousand, one hundred seventeen".