21933650133 has 24 divisors (see below), whose sum is σ = 31814470688. Its totient is φ = 14561392032.

The previous prime is 21933650117. The next prime is 21933650143. The reversal of 21933650133 is 33105633912.

21933650133 is a `hidden beast` number, since 2 + 1 + 93 + 36 + 501 + 33 = 666.

It is not a de Polignac number, because 21933650133 - 2⁴ = 21933650117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21933650113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2292666 + ... + 2302212.

Almost surely, 2^21933650133 is an apocalyptic number.

It is an amenable number.

21933650133 is a deficient number, since it is larger than the sum of its proper divisors (9880820555).

21933650133 is a wasteful number, since it uses less digits than its factorization.

21933650133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10593 (or 10590 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 36.

The spelling of 21933650133 in words is "twenty-one billion, nine hundred thirty-three million, six hundred fifty thousand, one hundred thirty-three".