Proposed here is a zero-dimensional number theory for physical phenomena charting the concept of infinity in using the Riemann zeta function and Ramanujan summation. The key common dimensional basis here is zero-dimensional time as a moment, and zero-dimensional space as an infinitesimal point. Key to the number theory are derived dimensional number paradigms and associated equations from the proposed intertwining of zero-dimensional time and zero-dimensional space together underwriting known physical phenomenal equations. Examples of these numbers are the values for the golden ratio, Euler’s identity, π, and the numbers 10, 12, and -1/12. These derived number paradigms and equation relationships are thence demonstrated to derive known physical phenomena constants such as the fine structure constant, Planck’s constant, and gravitational constant, together with their associated known equations. By such, it is shown that the proposed zero-dimensional time and zero-dimensional space axioms and their derived dimensional number paradigms likely represent the core underlying code of physical reality.