16508963453 has 2 divisors, whose sum is σ = 16508963454. Its totient is φ = 16508963452.

The previous prime is 16508963441. The next prime is 16508963473. The reversal of 16508963453 is 35436980561.

It is a happy number.

16508963453 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., 11414144569 + 5094818884 = 106837^2 + 71378^2 .

It is a cyclic number.

It is not a de Polignac number, because 16508963453 - 2³⁰ = 15435221629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16508963423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8254481726 + 8254481727.

It is an arithmetic number, because the mean of its divisors is an integer number (8254481727).

Almost surely, 2^16508963453 is an apocalyptic number.

It is an amenable number.

16508963453 is a deficient number, since it is larger than the sum of its proper divisors (1).

16508963453 is an equidigital number, since it uses as much as digits as its factorization.

16508963453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 16508963453 in words is "sixteen billion, five hundred eight million, nine hundred sixty-three thousand, four hundred fifty-three".