16523594453 has 2 divisors, whose sum is σ = 16523594454. Its totient is φ = 16523594452.

The previous prime is 16523594419. The next prime is 16523594489. The reversal of 16523594453 is 35449532561.

16523594453 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., 10049461009 + 6474133444 = 100247^2 + 80462^2 .

It is a cyclic number.

It is not a de Polignac number, because 16523594453 - 2²⁰ = 16522545877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16523594398 and 16523594407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16523594413) 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, 8261797226 + 8261797227.

It is an arithmetic number, because the mean of its divisors is an integer number (8261797227).

Almost surely, 2^16523594453 is an apocalyptic number.

It is an amenable number.

16523594453 is a deficient number, since it is larger than the sum of its proper divisors (1).

16523594453 is an equidigital number, since it uses as much as digits as its factorization.

16523594453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944000, while the sum is 47.

The spelling of 16523594453 in words is "sixteen billion, five hundred twenty-three million, five hundred ninety-four thousand, four hundred fifty-three".