16445611373 has 2 divisors, whose sum is σ = 16445611374. Its totient is φ = 16445611372.

The previous prime is 16445611327. The next prime is 16445611541. The reversal of 16445611373 is 37311654461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14477624329 + 1967987044 = 120323^2 + 44362^2 .

It is an emirp because it is prime and its reverse (37311654461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16445611373 - 2²⁶ = 16378502509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16445611373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16445611313) 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, 8222805686 + 8222805687.

It is an arithmetic number, because the mean of its divisors is an integer number (8222805687).

Almost surely, 2^16445611373 is an apocalyptic number.

It is an amenable number.

16445611373 is a deficient number, since it is larger than the sum of its proper divisors (1).

16445611373 is an equidigital number, since it uses as much as digits as its factorization.

16445611373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The spelling of 16445611373 in words is "sixteen billion, four hundred forty-five million, six hundred eleven thousand, three hundred seventy-three".