16663840301 has 2 divisors, whose sum is σ = 16663840302. Its totient is φ = 16663840300.

The previous prime is 16663840253. The next prime is 16663840339. The reversal of 16663840301 is 10304836661.

It is a happy number.

16663840301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (16663840339) can be obtained adding 16663840301 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16272829225 + 391011076 = 127565^2 + 19774^2 .

It is a cyclic number.

It is not a de Polignac number, because 16663840301 - 2¹⁰ = 16663839277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16663840201) 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, 8331920150 + 8331920151.

It is an arithmetic number, because the mean of its divisors is an integer number (8331920151).

Almost surely, 2^16663840301 is an apocalyptic number.

It is an amenable number.

16663840301 is a deficient number, since it is larger than the sum of its proper divisors (1).

16663840301 is an equidigital number, since it uses as much as digits as its factorization.

16663840301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 16663840301 in words is "sixteen billion, six hundred sixty-three million, eight hundred forty thousand, three hundred one".