16533446617 has 2 divisors, whose sum is σ = 16533446618. Its totient is φ = 16533446616.

The previous prime is 16533446603. The next prime is 16533446669. The reversal of 16533446617 is 71664433561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12275753616 + 4257693001 = 110796^2 + 65251^2 .

It is a cyclic number.

It is not a de Polignac number, because 16533446617 - 2¹⁵ = 16533413849 is a prime.

It is not a weakly prime, because it can be changed into another prime (16533446717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8266723308 + 8266723309.

It is an arithmetic number, because the mean of its divisors is an integer number (8266723309).

Almost surely, 2^16533446617 is an apocalyptic number.

It is an amenable number.

16533446617 is a deficient number, since it is larger than the sum of its proper divisors (1).

16533446617 is an equidigital number, since it uses as much as digits as its factorization.

16533446617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 46.

The spelling of 16533446617 in words is "sixteen billion, five hundred thirty-three million, four hundred forty-six thousand, six hundred seventeen".