21104233669 has 8 divisors (see below), whose sum is σ = 21370150080. Its totient is φ = 20838957216.

The previous prime is 21104233651. The next prime is 21104233691. The reversal of 21104233669 is 96633240112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21104233669 - 2⁷ = 21104233541 is a prime.

It is a super-2 number, since 2×21104233669² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21104233649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93447 + ... + 225700.

It is an arithmetic number, because the mean of its divisors is an integer number (2671268760).

Almost surely, 2^21104233669 is an apocalyptic number.

It is an amenable number.

21104233669 is a deficient number, since it is larger than the sum of its proper divisors (265916411).

21104233669 is an equidigital number, since it uses as much as digits as its factorization.

21104233669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319979.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 21104233669 in words is "twenty-one billion, one hundred four million, two hundred thirty-three thousand, six hundred sixty-nine".