6443165453 has 2 divisors, whose sum is σ = 6443165454. Its totient is φ = 6443165452.

The previous prime is 6443165447. The next prime is 6443165471. The reversal of 6443165453 is 3545613446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6437976169 + 5189284 = 80237^2 + 2278^2 .

It is a cyclic number.

It is not a de Polignac number, because 6443165453 - 2⁴ = 6443165437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6443165453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6443165473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3221582726 + 3221582727.

It is an arithmetic number, because the mean of its divisors is an integer number (3221582727).

Almost surely, 2^6443165453 is an apocalyptic number.

It is an amenable number.

6443165453 is a deficient number, since it is larger than the sum of its proper divisors (1).

6443165453 is an equidigital number, since it uses as much as digits as its factorization.

6443165453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 41.

The square root of 6443165453 is about 80269.3307122963. The cubic root of 6443165453 is about 1860.8002735234.

Adding to 6443165453 its reverse (3545613446), we get a palindrome (9988778899).

The spelling of 6443165453 in words is "six billion, four hundred forty-three million, one hundred sixty-five thousand, four hundred fifty-three".