166503067 has 2 divisors, whose sum is σ = 166503068. Its totient is φ = 166503066.

The previous prime is 166503047. The next prime is 166503079. The reversal of 166503067 is 760305661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166503067 - 2¹⁵ = 166470299 is a prime.

It is not a weakly prime, because it can be changed into another prime (166503017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83251533 + 83251534.

It is an arithmetic number, because the mean of its divisors is an integer number (83251534).

Almost surely, 2^166503067 is an apocalyptic number.

166503067 is a deficient number, since it is larger than the sum of its proper divisors (1).

166503067 is an equidigital number, since it uses as much as digits as its factorization.

166503067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 166503067 is about 12903.6067438527. The cubic root of 166503067 is about 550.1410844675.

The spelling of 166503067 in words is "one hundred sixty-six million, five hundred three thousand, sixty-seven".