21833566088 has 8 divisors (see below), whose sum is σ = 40937936430. Its totient is φ = 10916783040.

The previous prime is 21833566067. The next prime is 21833566091. The reversal of 21833566088 is 88066533812.

It can be written as a sum of positive squares in only one way, i.e., 21303737764 + 529828324 = 145958^2 + 23018^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364597873 + ... + 1364597888.

Almost surely, 2^21833566088 is an apocalyptic number.

It is an amenable number.

21833566088 is a deficient number, since it is larger than the sum of its proper divisors (19104370342).

21833566088 is a wasteful number, since it uses less digits than its factorization.

21833566088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729195767 (or 2729195763 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 21833566088 in words is "twenty-one billion, eight hundred thirty-three million, five hundred sixty-six thousand, eighty-eight".