165

Properties by base:

More about this number at Positiv Integers and Number Empire.

The number is not a prime.

Its 3 (3 unique) factors are:
3
5
11

Its 8 divisors are:
1
3
5
11
15
33
55
165
Its aliquote sum is:
123
makeing it a deficient number.

As Unicode codepoint (since version 1.1) this number represents this character:¥ YEN SIGN in Latin_1_Sup (Source: https://www.unicode.org/Public/UCD/latest/ucdxml/ucd.all.grouped.zip); HTML: ¥

In the work of Johann Sebastian Bach BWV 165 is O heilges Geist- und Wasserbad

The number appears at position 238 of the decimal digits of π surrounded by
4612847564823378678316527120190914564856692 Source: The Pi-Search Page

Computations done with Math::BigInt 1.999811 and Math::Pari 2.030523 based on PARI/GP 2.11.3 (elapsed: 768.453ms; cpu: 83.5739999999996ms)