166089467 has 4 divisors (see below), whose sum is σ = 171816720. Its totient is φ = 160362216.

The previous prime is 166089433. The next prime is 166089479. The reversal of 166089467 is 764980661.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 166089467 - 2⁶ = 166089403 is a prime.

It is a super-2 number, since 2×166089467² = 55171422096688178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166089487) 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, 2863583 + ... + 2863640.

It is an arithmetic number, because the mean of its divisors is an integer number (42954180).

Almost surely, 2^166089467 is an apocalyptic number.

166089467 is a deficient number, since it is larger than the sum of its proper divisors (5727253).

166089467 is an equidigital number, since it uses as much as digits as its factorization.

166089467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5727252.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 166089467 is about 12887.5702519909. The cubic root of 166089467 is about 549.6851829202.

The spelling of 166089467 in words is "one hundred sixty-six million, eighty-nine thousand, four hundred sixty-seven".