16550105161 has 2 divisors, whose sum is σ = 16550105162. Its totient is φ = 16550105160.

The previous prime is 16550105111. The next prime is 16550105179. The reversal of 16550105161 is 16150105561.

16550105161 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., 9933909561 + 6616195600 = 99669^2 + 81340^2 .

It is an emirp because it is prime and its reverse (16150105561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16550105161 is a prime.

It is not a weakly prime, because it can be changed into another prime (16550105111) 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, 8275052580 + 8275052581.

It is an arithmetic number, because the mean of its divisors is an integer number (8275052581).

Almost surely, 2^16550105161 is an apocalyptic number.

It is an amenable number.

16550105161 is a deficient number, since it is larger than the sum of its proper divisors (1).

16550105161 is an equidigital number, since it uses as much as digits as its factorization.

16550105161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 16550105161 in words is "sixteen billion, five hundred fifty million, one hundred five thousand, one hundred sixty-one".