16440223542089 has 2 divisors, whose sum is σ = 16440223542090. Its totient is φ = 16440223542088.

The previous prime is 16440223542047. The next prime is 16440223542131. The reversal of 16440223542089 is 98024532204461.

It is a balanced prime because it is at equal distance from previous prime (16440223542047) and next prime (16440223542131).

It can be written as a sum of positive squares in only one way, i.e., 11423609093689 + 5016614448400 = 3379883^2 + 2239780^2 .

It is an emirp because it is prime and its reverse (98024532204461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16440223542089 is a prime.

It is a super-3 number, since 3×16440223542089³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (16440223542019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8220111771044 + 8220111771045.

It is an arithmetic number, because the mean of its divisors is an integer number (8220111771045).

Almost surely, 2^{16440223542089} is an apocalyptic number.

It is an amenable number.

16440223542089 is a deficient number, since it is larger than the sum of its proper divisors (1).

16440223542089 is an equidigital number, since it uses as much as digits as its factorization.

16440223542089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 16440223542089 in words is "sixteen trillion, four hundred forty billion, two hundred twenty-three million, five hundred forty-two thousand, eighty-nine".