166148182171 has 2 divisors, whose sum is σ = 166148182172. Its totient is φ = 166148182170.

The previous prime is 166148182093. The next prime is 166148182201. The reversal of 166148182171 is 171281841661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166148182171 - 2¹⁹ = 166147657883 is a prime.

It is not a weakly prime, because it can be changed into another prime (166148182271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83074091085 + 83074091086.

It is an arithmetic number, because the mean of its divisors is an integer number (83074091086).

Almost surely, 2^166148182171 is an apocalyptic number.

166148182171 is a deficient number, since it is larger than the sum of its proper divisors (1).

166148182171 is an equidigital number, since it uses as much as digits as its factorization.

166148182171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 46.

The spelling of 166148182171 in words is "one hundred sixty-six billion, one hundred forty-eight million, one hundred eighty-two thousand, one hundred seventy-one".