166080911 has 4 divisors (see below), whose sum is σ = 166284024. Its totient is φ = 165877800.

The previous prime is 166080899. The next prime is 166080923. The reversal of 166080911 is 119080661.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (166080899) and next prime (166080923).

It is a cyclic number.

It is not a de Polignac number, because 166080911 - 2¹⁸ = 165818767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166080961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100325 + ... + 101966.

It is an arithmetic number, because the mean of its divisors is an integer number (41571006).

Almost surely, 2^166080911 is an apocalyptic number.

166080911 is a deficient number, since it is larger than the sum of its proper divisors (203113).

166080911 is an equidigital number, since it uses as much as digits as its factorization.

166080911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203112.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 166080911 is about 12887.2382999617. The cubic root of 166080911 is about 549.6757438564.

The spelling of 166080911 in words is "one hundred sixty-six million, eighty thousand, nine hundred eleven".