16732543549 has 2 divisors, whose sum is σ = 16732543550. Its totient is φ = 16732543548.

The previous prime is 16732543433. The next prime is 16732543561. The reversal of 16732543549 is 94534523761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13745921049 + 2986622500 = 117243^2 + 54650^2 .

It is an emirp because it is prime and its reverse (94534523761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16732543549 - 2²⁵ = 16698989117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16732547549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8366271774 + 8366271775.

It is an arithmetic number, because the mean of its divisors is an integer number (8366271775).

Almost surely, 2^16732543549 is an apocalyptic number.

It is an amenable number.

16732543549 is a deficient number, since it is larger than the sum of its proper divisors (1).

16732543549 is an equidigital number, since it uses as much as digits as its factorization.

16732543549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 49.

The spelling of 16732543549 in words is "sixteen billion, seven hundred thirty-two million, five hundred forty-three thousand, five hundred forty-nine".