16671342502489 has 2 divisors, whose sum is σ = 16671342502490. Its totient is φ = 16671342502488.

The previous prime is 16671342502483. The next prime is 16671342502601. The reversal of 16671342502489 is 98420524317661.

16671342502489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14613646928400 + 2057695574089 = 3822780^2 + 1434467^2 .

It is a cyclic number.

It is not a de Polignac number, because 16671342502489 - 2⁹ = 16671342501977 is a prime.

It is not a weakly prime, because it can be changed into another prime (16671342502483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8335671251244 + 8335671251245.

It is an arithmetic number, because the mean of its divisors is an integer number (8335671251245).

It is a 1-persistent number, because it is pandigital, but 2⋅16671342502489 = 33342685004978 is not.

Almost surely, 2^{16671342502489} is an apocalyptic number.

It is an amenable number.

16671342502489 is a deficient number, since it is larger than the sum of its proper divisors (1).

16671342502489 is an equidigital number, since it uses as much as digits as its factorization.

16671342502489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17418240, while the sum is 58.

The spelling of 16671342502489 in words is "sixteen trillion, six hundred seventy-one billion, three hundred forty-two million, five hundred two thousand, four hundred eighty-nine".