16665163 has 2 divisors, whose sum is σ = 16665164. Its totient is φ = 16665162.

The previous prime is 16665137. The next prime is 16665167. The reversal of 16665163 is 36156661.

It is a strong prime.

It is an emirp because it is prime and its reverse (36156661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16665163 - 2¹³ = 16656971 is a prime.

It is not a weakly prime, because it can be changed into another prime (16665167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8332581 + 8332582.

It is an arithmetic number, because the mean of its divisors is an integer number (8332582).

Almost surely, 2^16665163 is an apocalyptic number.

16665163 is a deficient number, since it is larger than the sum of its proper divisors (1).

16665163 is an equidigital number, since it uses as much as digits as its factorization.

16665163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 16665163 is about 4082.2987396809. The cubic root of 16665163 is about 255.4287954072.

The spelling of 16665163 in words is "sixteen million, six hundred sixty-five thousand, one hundred sixty-three".