21116527233 has 16 divisors (see below), whose sum is σ = 28235520000. Its totient is φ = 14037667280.

The previous prime is 21116527213. The next prime is 21116527241. The reversal of 21116527233 is 33272561112.

It is a cyclic number.

It is not a de Polignac number, because 21116527233 - 2¹⁸ = 21116265089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21116527194 and 21116527203.

It is not an unprimeable number, because it can be changed into a prime (21116527213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1630618 + ... + 1643516.

It is an arithmetic number, because the mean of its divisors is an integer number (1764720000).

Almost surely, 2^21116527233 is an apocalyptic number.

It is an amenable number.

21116527233 is a deficient number, since it is larger than the sum of its proper divisors (7118992767).

21116527233 is a wasteful number, since it uses less digits than its factorization.

21116527233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14412.

The product of its digits is 15120, while the sum is 33.

The spelling of 21116527233 in words is "twenty-one billion, one hundred sixteen million, five hundred twenty-seven thousand, two hundred thirty-three".