number-cruncher

or num·ber crunch·er

[nuhm-ber-kruhn-cher]
noun Informal.
  1. a person or thing that performs a great many numerical calculations, as a financial analyst, statistician, computer, or computer program.

Origin of number-cruncher

First recorded in 1965–70
Related formsnum·ber-crunch·ing, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for number-cruncher

accountant, bookkeeper, calculator, CPA, actuary, statistician