16432852309 has 2 divisors, whose sum is σ = 16432852310. Its totient is φ = 16432852308.

The previous prime is 16432852283. The next prime is 16432852417. The reversal of 16432852309 is 90325823461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12217986225 + 4214866084 = 110535^2 + 64922^2 .

It is a cyclic number.

It is not a de Polignac number, because 16432852309 - 2⁵ = 16432852277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16432852109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8216426154 + 8216426155.

It is an arithmetic number, because the mean of its divisors is an integer number (8216426155).

Almost surely, 2^16432852309 is an apocalyptic number.

It is an amenable number.

16432852309 is a deficient number, since it is larger than the sum of its proper divisors (1).

16432852309 is an equidigital number, since it uses as much as digits as its factorization.

16432852309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 16432852309 in words is "sixteen billion, four hundred thirty-two million, eight hundred fifty-two thousand, three hundred nine".