166163461 has 4 divisors (see below), whose sum is σ = 166339872. Its totient is φ = 165987052.

The previous prime is 166163453. The next prime is 166163467. The reversal of 166163461 is 164361661.

166163461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 166163461 - 2³ = 166163453 is a prime.

It is a super-2 number, since 2×166163461² = 55220591542997042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166163467) 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, 86785 + ... + 88678.

It is an arithmetic number, because the mean of its divisors is an integer number (41584968).

Almost surely, 2^166163461 is an apocalyptic number.

It is an amenable number.

166163461 is a deficient number, since it is larger than the sum of its proper divisors (176411).

166163461 is an equidigital number, since it uses as much as digits as its factorization.

166163461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176410.

The product of its digits is 15552, while the sum is 34.

The square root of 166163461 is about 12890.4406829247. The cubic root of 166163461 is about 549.7668003110.

The spelling of 166163461 in words is "one hundred sixty-six million, one hundred sixty-three thousand, four hundred sixty-one".