166485311 has 8 divisors (see below), whose sum is σ = 173152320. Its totient is φ = 159932448.

The previous prime is 166485251. The next prime is 166485313. The reversal of 166485311 is 113584661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166485311 - 2¹⁰ = 166484287 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 (166485313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25556 + ... + 31401.

It is an arithmetic number, because the mean of its divisors is an integer number (21644040).

Almost surely, 2^166485311 is an apocalyptic number.

166485311 is a deficient number, since it is larger than the sum of its proper divisors (6667009).

166485311 is an equidigital number, since it uses as much as digits as its factorization.

166485311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57073.

The product of its digits is 17280, while the sum is 35.

The square root of 166485311 is about 12902.9187008211. The cubic root of 166485311 is about 550.1215279661.

The spelling of 166485311 in words is "one hundred sixty-six million, four hundred eighty-five thousand, three hundred eleven".