16545230201 has 2 divisors, whose sum is σ = 16545230202. Its totient is φ = 16545230200.

The previous prime is 16545230173. The next prime is 16545230203. The reversal of 16545230201 is 10203254561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13261825600 + 3283404601 = 115160^2 + 57301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16545230201 is a prime.

Together with 16545230203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16545230203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272615100 + 8272615101.

It is an arithmetic number, because the mean of its divisors is an integer number (8272615101).

Almost surely, 2^16545230201 is an apocalyptic number.

It is an amenable number.

16545230201 is a deficient number, since it is larger than the sum of its proper divisors (1).

16545230201 is an equidigital number, since it uses as much as digits as its factorization.

16545230201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 16545230201 its reverse (10203254561), we get a palindrome (26748484762).

The spelling of 16545230201 in words is "sixteen billion, five hundred forty-five million, two hundred thirty thousand, two hundred one".