16366938531289 has 2 divisors, whose sum is σ = 16366938531290. Its totient is φ = 16366938531288.

The previous prime is 16366938531287. The next prime is 16366938531299. The reversal of 16366938531289 is 98213583966361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15541666213264 + 825272318025 = 3942292^2 + 908445^2 .

It is a cyclic number.

It is not a de Polignac number, because 16366938531289 - 2¹ = 16366938531287 is a prime.

Together with 16366938531287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16366938531283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8183469265644 + 8183469265645.

It is an arithmetic number, because the mean of its divisors is an integer number (8183469265645).

Almost surely, 2^{16366938531289} is an apocalyptic number.

It is an amenable number.

16366938531289 is a deficient number, since it is larger than the sum of its proper divisors (1).

16366938531289 is an equidigital number, since it uses as much as digits as its factorization.

16366938531289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302330880, while the sum is 70.

The spelling of 16366938531289 in words is "sixteen trillion, three hundred sixty-six billion, nine hundred thirty-eight million, five hundred thirty-one thousand, two hundred eighty-nine".