六 liù six; 6
Made up of [亠 tóu head; lid radical 8, 八 bā eight; 8 radical 12]Made with 4 strokes.
Contains the element indication for division to suggest it is an even number as in 4,6 and 8
Ancient small seal form 
Related characters
Also uses 亠 tóu component: 亨 hēng (prosperous) 京 jīng (capital) ; 亩 mǔ (area) ; 商 shāng (commerce) ; 市 shì (market) ; 亡 wáng (to die) ; 夜 yè (night) ; 亦 yì (also)
Also uses 八 bā component: 戴 dài (to respect) 分 fēn (divide) ; 共 gòng (common) ; 公 gōng (public) ; 关 guān (shut) ; 黄 huáng (yellow) ; 陵 líng (mound) ; 其 qí (his) ; 商 shāng (commerce) ; 四 sì (four) ; 兴 xīng (prosper) ; 穴 xué (cave)
Pronunciation
Sound file kindly provided by shtooka.net ➚ under a Creative Commons Attribution Share Alike License
Stroke order for character 六, kindly provided under Wikimedia creative commons license ➚