166565482 has 4 divisors (see below), whose sum is σ = 249848226. Its totient is φ = 83282740.

The previous prime is 166565459. The next prime is 166565491. The reversal of 166565482 is 284565661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 284565661 = 29 ⋅9812609.

It can be written as a sum of positive squares in only one way, i.e., 164378041 + 2187441 = 12821^2 + 1479^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41641369 + ... + 41641372.

Almost surely, 2^166565482 is an apocalyptic number.

166565482 is a deficient number, since it is larger than the sum of its proper divisors (83282744).

166565482 is an equidigital number, since it uses as much as digits as its factorization.

166565482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83282743.

The product of its digits is 345600, while the sum is 43.

The square root of 166565482 is about 12906.0250270949. The cubic root of 166565482 is about 550.2098174680.

The spelling of 166565482 in words is "one hundred sixty-six million, five hundred sixty-five thousand, four hundred eighty-two".