166510417 has 2 divisors, whose sum is σ = 166510418. Its totient is φ = 166510416.

The previous prime is 166510411. The next prime is 166510423. The reversal of 166510417 is 714015661.

It is a balanced prime because it is at equal distance from previous prime (166510411) and next prime (166510423).

It can be written as a sum of positive squares in only one way, i.e., 154977601 + 11532816 = 12449^2 + 3396^2 .

It is a cyclic number.

It is not a de Polignac number, because 166510417 - 2¹¹ = 166508369 is a prime.

It is not a weakly prime, because it can be changed into another prime (166510411) 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, 83255208 + 83255209.

It is an arithmetic number, because the mean of its divisors is an integer number (83255209).

Almost surely, 2^166510417 is an apocalyptic number.

It is an amenable number.

166510417 is a deficient number, since it is larger than the sum of its proper divisors (1).

166510417 is an equidigital number, since it uses as much as digits as its factorization.

166510417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 166510417 is about 12903.8915448015. The cubic root of 166510417 is about 550.1491793684.

The spelling of 166510417 in words is "one hundred sixty-six million, five hundred ten thousand, four hundred seventeen".