Order of [11] in $\mathbb{Z_{335}^x}$

Question

Order of [11] in $\mathbb{Z_{335}^x}$.
What I did is:
Since, GCF(11, 335) = 1
So, I thought
$11^x \equiv 1 \pmod {335} \Rightarrow 11^{\phi(335)} \equiv 1 \pmod {335}$
$x = \phi(335) = 264$
But when I tried it in Wolfram alpha x = 66(n).