233099999999920 has 80 divisors (see below), whose sum is σ = 562173336639360. Its totient is φ = 89779528000512.

The previous prime is 233099999999879. The next prime is 233099999999929. The reversal of 233099999999920 is 29999999990332.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (233099999999929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136034307 + ... + 137737186.

It is an arithmetic number, because the mean of its divisors is an integer number (7027166707992).

Almost surely, 2^{233099999999920} is an apocalyptic number.

233099999999920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233099999999920 is an abundant number, since it is smaller than the sum of its proper divisors (329073336639440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

233099999999920 is a wasteful number, since it uses less digits than its factorization.

233099999999920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273771902 (or 273771896 counting only the distinct ones).

The product of its (nonzero) digits is 13947137604, while the sum is 91.

The spelling of 233099999999920 in words is "two hundred thirty-three trillion, ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred twenty".