21633583333044 has 12 divisors (see below), whose sum is σ = 50478361110464. Its totient is φ = 7211194444344.

The previous prime is 21633583333027. The next prime is 21633583333067. The reversal of 21633583333044 is 44033338533612.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 21633583332984 and 21633583333002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901399305532 + ... + 901399305555.

Almost surely, 2^{21633583333044} is an apocalyptic number.

It is an amenable number.

21633583333044 is an abundant number, since it is smaller than the sum of its proper divisors (28844777777420).

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

21633583333044 is a wasteful number, since it uses less digits than its factorization.

21633583333044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802798611094 (or 1802798611092 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 48.

The spelling of 21633583333044 in words is "twenty-one trillion, six hundred thirty-three billion, five hundred eighty-three million, three hundred thirty-three thousand, forty-four".