16522451913817 has 2 divisors, whose sum is σ = 16522451913818. Its totient is φ = 16522451913816.

The previous prime is 16522451913787. The next prime is 16522451913841. The reversal of 16522451913817 is 71831915422561.

16522451913817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15752040205456 + 770411708361 = 3968884^2 + 877731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16522451913817 is a prime.

It is not a weakly prime, because it can be changed into another prime (16522451911817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8261225956908 + 8261225956909.

It is an arithmetic number, because the mean of its divisors is an integer number (8261225956909).

Almost surely, 2^{16522451913817} is an apocalyptic number.

It is an amenable number.

16522451913817 is a deficient number, since it is larger than the sum of its proper divisors (1).

16522451913817 is an equidigital number, since it uses as much as digits as its factorization.

16522451913817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 55.

The spelling of 16522451913817 in words is "sixteen trillion, five hundred twenty-two billion, four hundred fifty-one million, nine hundred thirteen thousand, eight hundred seventeen".