166112769 has 4 divisors (see below), whose sum is σ = 221483696. Its totient is φ = 110741844.

The previous prime is 166112743. The next prime is 166112773. The reversal of 166112769 is 967211661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 166112769 - 2¹³ = 166104577 is a prime.

It is a super-2 number, since 2×166112769² = 55186904049694722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166112719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27685459 + ... + 27685464.

It is an arithmetic number, because the mean of its divisors is an integer number (55370924).

Almost surely, 2^166112769 is an apocalyptic number.

It is an amenable number.

166112769 is a deficient number, since it is larger than the sum of its proper divisors (55370927).

166112769 is an equidigital number, since it uses as much as digits as its factorization.

166112769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55370926.

The product of its digits is 27216, while the sum is 39.

The square root of 166112769 is about 12888.4742696721. The cubic root of 166112769 is about 549.7108882732.

The spelling of 166112769 in words is "one hundred sixty-six million, one hundred twelve thousand, seven hundred sixty-nine".