16502045236309 has 2 divisors, whose sum is σ = 16502045236310. Its totient is φ = 16502045236308.

The previous prime is 16502045236213. The next prime is 16502045236333. The reversal of 16502045236309 is 90363254020561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13432005100900 + 3070040135409 = 3664970^2 + 1752153^2 .

It is a cyclic number.

It is not a de Polignac number, because 16502045236309 - 2⁷ = 16502045236181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16502045236349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8251022618154 + 8251022618155.

It is an arithmetic number, because the mean of its divisors is an integer number (8251022618155).

Almost surely, 2^{16502045236309} is an apocalyptic number.

It is an amenable number.

16502045236309 is a deficient number, since it is larger than the sum of its proper divisors (1).

16502045236309 is an equidigital number, since it uses as much as digits as its factorization.

16502045236309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 16502045236309 in words is "sixteen trillion, five hundred two billion, forty-five million, two hundred thirty-six thousand, three hundred nine".