16166597 has 2 divisors, whose sum is σ = 16166598. Its totient is φ = 16166596.

The previous prime is 16166569. The next prime is 16166599. The reversal of 16166597 is 79566161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12609601 + 3556996 = 3551^2 + 1886^2 .

It is a cyclic number.

It is not a de Polignac number, because 16166597 - 2⁶ = 16166533 is a prime.

It is a super-2 number, since 2×16166597² = 522717717120818, which contains 22 as substring.

Together with 16166599, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16166599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8083298 + 8083299.

It is an arithmetic number, because the mean of its divisors is an integer number (8083299).

Almost surely, 2^16166597 is an apocalyptic number.

It is an amenable number.

16166597 is a deficient number, since it is larger than the sum of its proper divisors (1).

16166597 is an equidigital number, since it uses as much as digits as its factorization.

16166597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 41.

The square root of 16166597 is about 4020.7706972669. The cubic root of 16166597 is about 252.8557713986.

The spelling of 16166597 in words is "sixteen million, one hundred sixty-six thousand, five hundred ninety-seven".