16637374782089 has 2 divisors, whose sum is σ = 16637374782090. Its totient is φ = 16637374782088.

The previous prime is 16637374782073. The next prime is 16637374782151. The reversal of 16637374782089 is 98028747373661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15204345525625 + 1433029256464 = 3899275^2 + 1197092^2 .

It is a cyclic number.

It is not a de Polignac number, because 16637374782089 - 2⁴ = 16637374782073 is a prime.

It is not a weakly prime, because it can be changed into another prime (16637374784089) 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, 8318687391044 + 8318687391045.

It is an arithmetic number, because the mean of its divisors is an integer number (8318687391045).

Almost surely, 2^{16637374782089} is an apocalyptic number.

It is an amenable number.

16637374782089 is a deficient number, since it is larger than the sum of its proper divisors (1).

16637374782089 is an equidigital number, since it uses as much as digits as its factorization.

16637374782089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512096256, while the sum is 71.

The spelling of 16637374782089 in words is "sixteen trillion, six hundred thirty-seven billion, three hundred seventy-four million, seven hundred eighty-two thousand, eighty-nine".