16544656482433 has 2 divisors, whose sum is σ = 16544656482434. Its totient is φ = 16544656482432.

The previous prime is 16544656482407. The next prime is 16544656482439. The reversal of 16544656482433 is 33428465644561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16231737072769 + 312919409664 = 4028863^2 + 559392^2 .

It is a cyclic number.

It is not a de Polignac number, because 16544656482433 - 2⁵ = 16544656482401 is a prime.

It is not a weakly prime, because it can be changed into another prime (16544656482439) 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, 8272328241216 + 8272328241217.

It is an arithmetic number, because the mean of its divisors is an integer number (8272328241217).

Almost surely, 2^{16544656482433} is an apocalyptic number.

It is an amenable number.

16544656482433 is a deficient number, since it is larger than the sum of its proper divisors (1).

16544656482433 is an equidigital number, since it uses as much as digits as its factorization.

16544656482433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 199065600, while the sum is 61.

The spelling of 16544656482433 in words is "sixteen trillion, five hundred forty-four billion, six hundred fifty-six million, four hundred eighty-two thousand, four hundred thirty-three".