Spanish numbers?

Question

are they any spanish numbers beside 26, 23 and 16 that have accent marks?

Answer 1

veintidós

ciento veintitrés etc.

un billón

un trillón

un cuatrillón

Answer 2

. For words ending in a consonant other than n or s, the stress falls on the last syllable unless otherwise indicated by a written accent mark. e.g., tomar, invitar, papel, reloj, universidad, matiz.

2. For words ending in a vowel, n, or s, the stress falls on the penultimate syllable (unless otherwise noted by written mark). e.g., clase, tomamos, casas, sombrero, corbata, comen.

3. A written accent mark must always be used to indicate an exception to the ordinary rules of stress. e.g., sábado, escribí, lección, fácil, ánimo, cenábamos. Note: Words stressed on any syllable except the last or penultimate will always carry a written accent mark. Verb forms with attached object pronouns are frequently found in this category. e.g., explíquemelo, levantándose, preparárnoslas.

4. A diphthong is any combination of a weak vowel (i, u) and a strong vowel (a, e, o) or two weak vowels. In a diphthong the two vowels are pronounced as one syllable sound with the strong vowel (or the second of the two weak vowels) receiving slightly more emphasis than the other. e.g., piensa, almuerzo, ciudad, fuimos. A written accent mark is used to eliminate the natural diphthong so that two separate vowel sounds will be heard. e.g., cafetería, tío, continúe.

5. Written accent marks are also used to distinguish between words with equal spellings and pronunciation, but with different meanings.

a. Interrogatives and exclamatory words have a written accent (their relative pronoun counterparts do not).

b. Demonstrative pronouns have a written accent to distinguish them from the demonstrative adjective forms.

c. In nine common word pairs, the written accent mark is the only distinction between varying meanings. These words are pronounced equally.
el = the dé = give (present subjunctive, 1st/3rd singular)
mas = but él = he
de = of, from más = but
mi = my mí = me
se = him/herself, themselves, itself, oneself sé = I know
si = if sí = yes

solo = alone
sólo = only
te = you (object pronoun) té = tea tu your tú you (subject pronoun)

Answer 3

1000000 Un millón.