166672867 has 2 divisors, whose sum is σ = 166672868. Its totient is φ = 166672866.

The previous prime is 166672829. The next prime is 166672873. The reversal of 166672867 is 768276661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166672867 - 2⁷ = 166672739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166672867.

It is not a weakly prime, because it can be changed into another prime (166672897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83336433 + 83336434.

It is an arithmetic number, because the mean of its divisors is an integer number (83336434).

Almost surely, 2^166672867 is an apocalyptic number.

166672867 is a deficient number, since it is larger than the sum of its proper divisors (1).

166672867 is an equidigital number, since it uses as much as digits as its factorization.

166672867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 49.

The square root of 166672867 is about 12910.1846230021. The cubic root of 166672867 is about 550.3280324143.

The spelling of 166672867 in words is "one hundred sixty-six million, six hundred seventy-two thousand, eight hundred sixty-seven".