166050169 has 4 divisors (see below), whose sum is σ = 175817844. Its totient is φ = 156282496.

The previous prime is 166050151. The next prime is 166050173. The reversal of 166050169 is 961050661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 961050661 = 2819 ⋅340919.

It can be written as a sum of positive squares in 2 ways, for example, as 153884025 + 12166144 = 12405^2 + 3488^2 .

It is not a de Polignac number, because 166050169 - 2⁹ = 166049657 is a prime.

It is a super-3 number, since 3×166050169³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166050109) 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 in 3 ways as a sum of consecutive naturals, for example, 4883812 + ... + 4883845.

It is an arithmetic number, because the mean of its divisors is an integer number (43954461).

Almost surely, 2^166050169 is an apocalyptic number.

It is an amenable number.

166050169 is a deficient number, since it is larger than the sum of its proper divisors (9767675).

166050169 is an equidigital number, since it uses as much as digits as its factorization.

166050169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9767674.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 166050169 is about 12886.0455144315. The cubic root of 166050169 is about 549.6418263031.

The spelling of 166050169 in words is "one hundred sixty-six million, fifty thousand, one hundred sixty-nine".