数多くの [kazu ōkuno] = a number of, many, a lot of

ヨーロッパには数多くのいろいろな言語があります。

yōroppa ni wa kazu ōkuno iroirona gengo ga arimasu.

= There are many different languages in Europe.

https://www.learnwitholiver.com/japanese/daily-sentence-310