16144014666889 has 2 divisors, whose sum is σ = 16144014666890. Its totient is φ = 16144014666888.

The previous prime is 16144014666881. The next prime is 16144014666919. The reversal of 16144014666889 is 98866641044161.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8504689038400 + 7639325628489 = 2916280^2 + 2763933^2 .

It is an emirp because it is prime and its reverse (98866641044161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16144014666889 - 2³ = 16144014666881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16144014666889.

It is not a weakly prime, because it can be changed into another prime (16144014666881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8072007333444 + 8072007333445.

It is an arithmetic number, because the mean of its divisors is an integer number (8072007333445).

Almost surely, 2^{16144014666889} is an apocalyptic number.

It is an amenable number.

16144014666889 is a deficient number, since it is larger than the sum of its proper divisors (1).

16144014666889 is an equidigital number, since it uses as much as digits as its factorization.

16144014666889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47775744, while the sum is 64.

The spelling of 16144014666889 in words is "sixteen trillion, one hundred forty-four billion, fourteen million, six hundred sixty-six thousand, eight hundred eighty-nine".