166513327 has 2 divisors, whose sum is σ = 166513328. Its totient is φ = 166513326.

The previous prime is 166513309. The next prime is 166513337. The reversal of 166513327 is 723315661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166513327 - 2²³ = 158124719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166513292 and 166513301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166513337) 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, 83256663 + 83256664.

It is an arithmetic number, because the mean of its divisors is an integer number (83256664).

Almost surely, 2^166513327 is an apocalyptic number.

166513327 is a deficient number, since it is larger than the sum of its proper divisors (1).

166513327 is an equidigital number, since it uses as much as digits as its factorization.

166513327 is an odious number, because the sum of its binary digits is odd.

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

The square root of 166513327 is about 12904.0043009912. The cubic root of 166513327 is about 550.1523842225.

Adding to 166513327 its reverse (723315661), we get a palindrome (889828988).

The spelling of 166513327 in words is "one hundred sixty-six million, five hundred thirteen thousand, three hundred twenty-seven".