Declension table of ?ṣaṭsahasra

Masculine	Singular	Dual	Plural
Nominative	ṣaṭsahasraḥ	ṣaṭsahasrau	ṣaṭsahasrāḥ
Vocative	ṣaṭsahasra	ṣaṭsahasrau	ṣaṭsahasrāḥ
Accusative	ṣaṭsahasram	ṣaṭsahasrau	ṣaṭsahasrān
Instrumental	ṣaṭsahasreṇa	ṣaṭsahasrābhyām	ṣaṭsahasraiḥ ṣaṭsahasrebhiḥ
Dative	ṣaṭsahasrāya	ṣaṭsahasrābhyām	ṣaṭsahasrebhyaḥ
Ablative	ṣaṭsahasrāt	ṣaṭsahasrābhyām	ṣaṭsahasrebhyaḥ
Genitive	ṣaṭsahasrasya	ṣaṭsahasrayoḥ	ṣaṭsahasrāṇām
Locative	ṣaṭsahasre	ṣaṭsahasrayoḥ	ṣaṭsahasreṣu

Compound ṣaṭsahasra -

Adverb -ṣaṭsahasram -ṣaṭsahasrāt