16639163 has 2 divisors, whose sum is σ = 16639164. Its totient is φ = 16639162.

The previous prime is 16639123. The next prime is 16639171. The reversal of 16639163 is 36193661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16639163 - 2⁶ = 16639099 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16639123) 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, 8319581 + 8319582.

It is an arithmetic number, because the mean of its divisors is an integer number (8319582).

Almost surely, 2^16639163 is an apocalyptic number.

16639163 is a deficient number, since it is larger than the sum of its proper divisors (1).

16639163 is an equidigital number, since it uses as much as digits as its factorization.

16639163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 35.

The square root of 16639163 is about 4079.1130163309. The cubic root of 16639163 is about 255.2958913088.

The spelling of 16639163 in words is "sixteen million, six hundred thirty-nine thousand, one hundred sixty-three".