16530938453 has 2 divisors, whose sum is σ = 16530938454. Its totient is φ = 16530938452.

The previous prime is 16530938441. The next prime is 16530938491. The reversal of 16530938453 is 35483903561.

16530938453 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., 14951909284 + 1579029169 = 122278^2 + 39737^2 .

It is an emirp because it is prime and its reverse (35483903561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16530938453 - 2¹⁰ = 16530937429 is a prime.

It is a super-2 number, since 2×16530938453² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16530938398 and 16530938407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16530238453) 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, 8265469226 + 8265469227.

It is an arithmetic number, because the mean of its divisors is an integer number (8265469227).

Almost surely, 2^16530938453 is an apocalyptic number.

It is an amenable number.

16530938453 is a deficient number, since it is larger than the sum of its proper divisors (1).

16530938453 is an equidigital number, since it uses as much as digits as its factorization.

16530938453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 16530938453 in words is "sixteen billion, five hundred thirty million, nine hundred thirty-eight thousand, four hundred fifty-three".