Apocalyptic Number
A number of the form 
which contains the digits 666 (the Beast Number) is called an Apocalyptic Number.
is an apocalyptic number. The first few such powers are 157, 192, 218, 220, ... (Sloane's A007356).
References
Pickover, C. A. Keys to Infinity. New York: Wiley, pp. 97-102, 1995. Sloane, N. J. A. SequenceA007356/M5405in ``An On-Line Version of the Encyclopedia of Integer Sequences.''http://www.research.att.com/~njas/sequences/eisonline.html and extended entry inSloane, N. J. A. and Plouffe, S.The Encyclopedia of Integer Sequences. San Diego: Academic Press, 1995.
- Purser's Theorem
- Pursuit Curve
- Push
- Puzzle
- P-Value
- Pyramid
- Pyramidal Frustum
- Pyramidal Number
- Pyritohedron
- Pythagoras's Constant
- Pythagoras's Theorem
- Pythagoras Tree
- Pythagorean Fraction
- Pythagorean Quadruple
- Pythagorean Square Puzzle
- Pythagorean Theorem
- Pythagorean Triad
- Pythagorean Triangle
- Pythagorean Triple
- Pépin's Test
- Pépin's Theorem
- Pólya-Burnside Lemma
- Pólya Conjecture
- Pólya Distribution
- Pólya Enumeration Theorem