160665706 has 4 divisors (see below), whose sum is σ = 240998562. Its totient is φ = 80332852.

The previous prime is 160665689. The next prime is 160665707. The reversal of 160665706 is 607566061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607566061 = 241 ⋅2521021.

It can be written as a sum of positive squares in only one way, i.e., 104550625 + 56115081 = 10225^2 + 7491^2 .

It is not an unprimeable number, because it can be changed into a prime (160665707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40166425 + ... + 40166428.

Almost surely, 2^160665706 is an apocalyptic number.

160665706 is a deficient number, since it is larger than the sum of its proper divisors (80332856).

160665706 is an equidigital number, since it uses as much as digits as its factorization.

160665706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80332855.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 160665706 is about 12675.3976663456. The cubic root of 160665706 is about 543.6353998854.

The spelling of 160665706 in words is "one hundred sixty million, six hundred sixty-five thousand, seven hundred six".