166672711 has 2 divisors, whose sum is σ = 166672712. Its totient is φ = 166672710.

The previous prime is 166672631. The next prime is 166672721. The reversal of 166672711 is 117276661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166672711 - 2¹⁵ = 166639943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166672721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83336355 + 83336356.

It is an arithmetic number, because the mean of its divisors is an integer number (83336356).

Almost surely, 2^166672711 is an apocalyptic number.

166672711 is a deficient number, since it is larger than the sum of its proper divisors (1).

166672711 is an equidigital number, since it uses as much as digits as its factorization.

166672711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 37.

The square root of 166672711 is about 12910.1785812591. The cubic root of 166672711 is about 550.3278607183.

The spelling of 166672711 in words is "one hundred sixty-six million, six hundred seventy-two thousand, seven hundred eleven".