16555272577289 has 2 divisors, whose sum is σ = 16555272577290. Its totient is φ = 16555272577288.

The previous prime is 16555272577279. The next prime is 16555272577399. The reversal of 16555272577289 is 98277527255561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12603955542025 + 3951317035264 = 3550205^2 + 1987792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16555272577289 is a prime.

It is not a weakly prime, because it can be changed into another prime (16555272577219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8277636288644 + 8277636288645.

It is an arithmetic number, because the mean of its divisors is an integer number (8277636288645).

Almost surely, 2^{16555272577289} is an apocalyptic number.

It is an amenable number.

16555272577289 is a deficient number, since it is larger than the sum of its proper divisors (1).

16555272577289 is an equidigital number, since it uses as much as digits as its factorization.

16555272577289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 740880000, while the sum is 71.

The spelling of 16555272577289 in words is "sixteen trillion, five hundred fifty-five billion, two hundred seventy-two million, five hundred seventy-seven thousand, two hundred eighty-nine".