16442667615089 has 2 divisors, whose sum is σ = 16442667615090. Its totient is φ = 16442667615088.

The previous prime is 16442667615067. The next prime is 16442667615097. The reversal of 16442667615089 is 98051676624461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11838175642225 + 4604491972864 = 3440665^2 + 2145808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16442667615089 is a prime.

It is a super-3 number, since 3×16442667615089³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16442667611089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8221333807544 + 8221333807545.

It is an arithmetic number, because the mean of its divisors is an integer number (8221333807545).

Almost surely, 2^{16442667615089} is an apocalyptic number.

It is an amenable number.

16442667615089 is a deficient number, since it is larger than the sum of its proper divisors (1).

16442667615089 is an equidigital number, since it uses as much as digits as its factorization.

16442667615089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104509440, while the sum is 65.

The spelling of 16442667615089 in words is "sixteen trillion, four hundred forty-two billion, six hundred sixty-seven million, six hundred fifteen thousand, eighty-nine".