Source: wikibot/nontotient
= Nontotient
{wiki=Nontotient}
A **nontotient** is a positive integer \\( n \\) for which there is no integer \\( k \\) such that \\( k \\) and \\( n \\) are coprime, and \\( \\phi(k) = n \\), where \\( \\phi \\) is the Euler's totient function. The Euler's totient function \\( \\phi(k) \\) counts the number of integers up to \\( k \\) that are coprime to \\( k \\).