16166173 has 2 divisors, whose sum is σ = 16166174. Its totient is φ = 16166172.

The previous prime is 16166153. The next prime is 16166191. The reversal of 16166173 is 37166161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10227204 + 5938969 = 3198^2 + 2437^2 .

It is an emirp because it is prime and its reverse (37166161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16166173 - 2⁵ = 16166141 is a prime.

It is a super-2 number, since 2×16166173² = 522690298931858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16166123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8083086 + 8083087.

It is an arithmetic number, because the mean of its divisors is an integer number (8083087).

Almost surely, 2^16166173 is an apocalyptic number.

It is an amenable number.

16166173 is a deficient number, since it is larger than the sum of its proper divisors (1).

16166173 is an equidigital number, since it uses as much as digits as its factorization.

16166173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 16166173 is about 4020.7179707112. The cubic root of 16166173 is about 252.8535608369.

The spelling of 16166173 in words is "sixteen million, one hundred sixty-six thousand, one hundred seventy-three".