16522993817 has 4 divisors (see below), whose sum is σ = 18025084176. Its totient is φ = 15020903460.

The previous prime is 16522993793. The next prime is 16522993829. The reversal of 16522993817 is 71839922561.

16522993817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16522993817 - 2⁸ = 16522993561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16522990817) 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 in 3 ways as a sum of consecutive naturals, for example, 751045163 + ... + 751045184.

It is an arithmetic number, because the mean of its divisors is an integer number (4506271044).

Almost surely, 2^16522993817 is an apocalyptic number.

It is an amenable number.

16522993817 is a deficient number, since it is larger than the sum of its proper divisors (1502090359).

16522993817 is a wasteful number, since it uses less digits than its factorization.

16522993817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502090358.

The product of its digits is 1632960, while the sum is 53.

The spelling of 16522993817 in words is "sixteen billion, five hundred twenty-two million, nine hundred ninety-three thousand, eight hundred seventeen".