16326866295109 has 2 divisors, whose sum is σ = 16326866295110. Its totient is φ = 16326866295108.

The previous prime is 16326866295101. The next prime is 16326866295119. The reversal of 16326866295109 is 90159266862361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14129163818884 + 2197702476225 = 3758878^2 + 1482465^2 .

It is an emirp because it is prime and its reverse (90159266862361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16326866295109 - 2³ = 16326866295101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16326866295101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8163433147554 + 8163433147555.

It is an arithmetic number, because the mean of its divisors is an integer number (8163433147555).

Almost surely, 2^{16326866295109} is an apocalyptic number.

It is an amenable number.

16326866295109 is a deficient number, since it is larger than the sum of its proper divisors (1).

16326866295109 is an equidigital number, since it uses as much as digits as its factorization.

16326866295109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50388480, while the sum is 64.

The spelling of 16326866295109 in words is "sixteen trillion, three hundred twenty-six billion, eight hundred sixty-six million, two hundred ninety-five thousand, one hundred nine".