166268027 has 2 divisors, whose sum is σ = 166268028. Its totient is φ = 166268026.

The previous prime is 166268021. The next prime is 166268117. The reversal of 166268027 is 720862661.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (720862661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166268027 - 2⁶ = 166267963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (166268021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83134013 + 83134014.

It is an arithmetic number, because the mean of its divisors is an integer number (83134014).

Almost surely, 2^166268027 is an apocalyptic number.

166268027 is a deficient number, since it is larger than the sum of its proper divisors (1).

166268027 is an equidigital number, since it uses as much as digits as its factorization.

166268027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 166268027 is about 12894.4959963544. The cubic root of 166268027 is about 549.8820981435.

The spelling of 166268027 in words is "one hundred sixty-six million, two hundred sixty-eight thousand, twenty-seven".