Can $5^n+6^n+10^n$ be a perfect power?

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Can $f(n)=5^n+6^n+10^n$ with a non-negative integer $n$ be a perfect power ?

  • It is not a perfect power for $0\le n\le 10^5$
  • Analysis modulo $3$ reveals that a perfect square is impossible if $n\ge 2$ is even. Analysis modulo $8$ reveals that a perfect square is impossible , if $n\ge 1$ is odd. Hence the expression canoot be a perfect square.

What about cubes or higher perfect powers ? Considering the search limit, a perfect power of this form is extremely unlikely, but how can I make further progress towards a proof ?