16645163 has 2 divisors, whose sum is σ = 16645164. Its totient is φ = 16645162.

The previous prime is 16645151. The next prime is 16645177. The reversal of 16645163 is 36154661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16645163 - 2¹² = 16641067 is a prime.

It is a super-2 number, since 2×16645163² = 554122902593138, which contains 22 as substring.

It is a Chen prime.

It is equal to p_1069916 and since 16645163 and 1069916 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (16645133) 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, 8322581 + 8322582.

It is an arithmetic number, because the mean of its divisors is an integer number (8322582).

Almost surely, 2^16645163 is an apocalyptic number.

16645163 is a deficient number, since it is larger than the sum of its proper divisors (1).

16645163 is an equidigital number, since it uses as much as digits as its factorization.

16645163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 16645163 is about 4079.8484040464. The cubic root of 16645163 is about 255.3265737670.

The spelling of 16645163 in words is "sixteen million, six hundred forty-five thousand, one hundred sixty-three".