16651163233 has 2 divisors, whose sum is σ = 16651163234. Its totient is φ = 16651163232.

The previous prime is 16651163231. The next prime is 16651163279. The reversal of 16651163233 is 33236115661.

It is a happy number.

16651163233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12470635584 + 4180527649 = 111672^2 + 64657^2 .

It is a cyclic number.

It is not a de Polignac number, because 16651163233 - 2¹ = 16651163231 is a prime.

It is a super-2 number, since 2×16651163233² (a number of 21 digits) contains 22 as substring.

Together with 16651163231, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 16651163192 and 16651163201.

It is not a weakly prime, because it can be changed into another prime (16651163231) 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, 8325581616 + 8325581617.

It is an arithmetic number, because the mean of its divisors is an integer number (8325581617).

Almost surely, 2^16651163233 is an apocalyptic number.

It is an amenable number.

16651163233 is a deficient number, since it is larger than the sum of its proper divisors (1).

16651163233 is an equidigital number, since it uses as much as digits as its factorization.

16651163233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 37.

Adding to 16651163233 its reverse (33236115661), we get a palindrome (49887278894).

The spelling of 16651163233 in words is "sixteen billion, six hundred fifty-one million, one hundred sixty-three thousand, two hundred thirty-three".