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 ➚