Declension table of ?ṣaṣṭisāhasra

Masculine	Singular	Dual	Plural
Nominative	ṣaṣṭisāhasraḥ	ṣaṣṭisāhasrau	ṣaṣṭisāhasrāḥ
Vocative	ṣaṣṭisāhasra	ṣaṣṭisāhasrau	ṣaṣṭisāhasrāḥ
Accusative	ṣaṣṭisāhasram	ṣaṣṭisāhasrau	ṣaṣṭisāhasrān
Instrumental	ṣaṣṭisāhasreṇa	ṣaṣṭisāhasrābhyām	ṣaṣṭisāhasraiḥ ṣaṣṭisāhasrebhiḥ
Dative	ṣaṣṭisāhasrāya	ṣaṣṭisāhasrābhyām	ṣaṣṭisāhasrebhyaḥ
Ablative	ṣaṣṭisāhasrāt	ṣaṣṭisāhasrābhyām	ṣaṣṭisāhasrebhyaḥ
Genitive	ṣaṣṭisāhasrasya	ṣaṣṭisāhasrayoḥ	ṣaṣṭisāhasrāṇām
Locative	ṣaṣṭisāhasre	ṣaṣṭisāhasrayoḥ	ṣaṣṭisāhasreṣu

Compound ṣaṣṭisāhasra -

Adverb -ṣaṣṭisāhasram -ṣaṣṭisāhasrāt