16233201665669 has 2 divisors, whose sum is σ = 16233201665670. Its totient is φ = 16233201665668.

The previous prime is 16233201665647. The next prime is 16233201665699. The reversal of 16233201665669 is 96656610233261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16231737072769 + 1464592900 = 4028863^2 + 38270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16233201665669 is a prime.

It is a super-2 number, since 2×16233201665669² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16233201665699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8116600832834 + 8116600832835.

It is an arithmetic number, because the mean of its divisors is an integer number (8116600832835).

Almost surely, 2^{16233201665669} is an apocalyptic number.

It is an amenable number.

16233201665669 is a deficient number, since it is larger than the sum of its proper divisors (1).

16233201665669 is an equidigital number, since it uses as much as digits as its factorization.

16233201665669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12597120, while the sum is 56.

The spelling of 16233201665669 in words is "sixteen trillion, two hundred thirty-three billion, two hundred one million, six hundred sixty-five thousand, six hundred sixty-nine".