21650366104 has 16 divisors (see below), whose sum is σ = 40762881720. Its totient is φ = 10780264320.

The previous prime is 21650366083. The next prime is 21650366113. The reversal of 21650366104 is 40166305612.

It is a self number, because there is not a number n which added to its sum of digits gives 21650366104.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5612794 + ... + 5616649.

Almost surely, 2^21650366104 is an apocalyptic number.

It is an amenable number.

21650366104 is a deficient number, since it is larger than the sum of its proper divisors (19112515616).

21650366104 is a wasteful number, since it uses less digits than its factorization.

21650366104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11229690 (or 11229686 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 21650366104 in words is "twenty-one billion, six hundred fifty million, three hundred sixty-six thousand, one hundred four".