16555163 has 2 divisors, whose sum is σ = 16555164. Its totient is φ = 16555162.

The previous prime is 16555153. The next prime is 16555171. The reversal of 16555163 is 36155561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16555163 - 2⁸ = 16554907 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16555153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8277581 + 8277582.

It is an arithmetic number, because the mean of its divisors is an integer number (8277582).

Almost surely, 2^16555163 is an apocalyptic number.

16555163 is a deficient number, since it is larger than the sum of its proper divisors (1).

16555163 is an equidigital number, since it uses as much as digits as its factorization.

16555163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13500, while the sum is 32.

The square root of 16555163 is about 4068.8036325190. The cubic root of 16555163 is about 254.8655603014.

The spelling of 16555163 in words is "sixteen million, five hundred fifty-five thousand, one hundred sixty-three".