605160665 has 4 divisors (see below), whose sum is σ = 726192804. Its totient is φ = 484128528.

The previous prime is 605160637. The next prime is 605160671. The reversal of 605160665 is 566061506.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 566061506 = 2 ⋅283030753.

It can be written as a sum of positive squares in 2 ways, for example, as 161594944 + 443565721 = 12712^2 + 21061^2 .

It is a cyclic number.

It is not a de Polignac number, because 605160665 - 2⁶ = 605160601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60516062 + ... + 60516071.

It is an arithmetic number, because the mean of its divisors is an integer number (181548201).

Almost surely, 2^605160665 is an apocalyptic number.

It is an amenable number.

605160665 is a deficient number, since it is larger than the sum of its proper divisors (121032139).

605160665 is a wasteful number, since it uses less digits than its factorization.

605160665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121032138.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 605160665 is about 24600.0135162564. The cubic root of 605160665 is about 845.8439172211.

The spelling of 605160665 in words is "six hundred five million, one hundred sixty thousand, six hundred sixty-five".