166122659 has 2 divisors, whose sum is σ = 166122660. Its totient is φ = 166122658.

The previous prime is 166122599. The next prime is 166122661. The reversal of 166122659 is 956221661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166122659 is a prime.

It is a super-3 number, since 3×166122659³ (a number of 26 digits) contains 333 as substring.

Together with 166122661, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (166122689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83061329 + 83061330.

It is an arithmetic number, because the mean of its divisors is an integer number (83061330).

Almost surely, 2^166122659 is an apocalyptic number.

166122659 is a deficient number, since it is larger than the sum of its proper divisors (1).

166122659 is an equidigital number, since it uses as much as digits as its factorization.

166122659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 166122659 is about 12888.8579400969. The cubic root of 166122659 is about 549.7217975947.

The spelling of 166122659 in words is "one hundred sixty-six million, one hundred twenty-two thousand, six hundred fifty-nine".