Dynamical systems and number theory have a long history of fruitful interactions. The interactions cut across fields, in subconvexity and equidistribution of arithmetic objects (Linnik theorem), diophantine approximation (Oppenheim's conjecture), theory of automorphic forms (Quantum Unique Ergodicity), additive combinatorics (Szemeredi's theorem and the Green-Tao theorem) and recently progress in multiplicative number theory (Sarnak's and Chowla conjectures). The workshop aims to bring together experts in analytic number theory and dynamical systems to develop these classical and new themes further.