166671107 has 2 divisors, whose sum is σ = 166671108. Its totient is φ = 166671106.

The previous prime is 166671073. The next prime is 166671121. The reversal of 166671107 is 701176661.

It is a strong prime.

It is an emirp because it is prime and its reverse (701176661) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166671107 is a prime.

It is not a weakly prime, because it can be changed into another prime (166671157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83335553 + 83335554.

It is an arithmetic number, because the mean of its divisors is an integer number (83335554).

Almost surely, 2^166671107 is an apocalyptic number.

166671107 is a deficient number, since it is larger than the sum of its proper divisors (1).

166671107 is an equidigital number, since it uses as much as digits as its factorization.

166671107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 166671107 is about 12910.1164595832. The cubic root of 166671107 is about 550.3260953249.

The spelling of 166671107 in words is "one hundred sixty-six million, six hundred seventy-one thousand, one hundred seven".