4160065685 has 4 divisors (see below), whose sum is σ = 4992078828. Its totient is φ = 3328052544.

The previous prime is 4160065681. The next prime is 4160065753. The reversal of 4160065685 is 5865600614.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1290749329 + 2869316356 = 35927^2 + 53566^2 .

It is a cyclic number.

It is not a de Polignac number, because 4160065685 - 2² = 4160065681 is a prime.

It is a super-2 number, since 2×4160065685² = 34612293007029038450, 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 (4160065681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416006564 + ... + 416006573.

It is an arithmetic number, because the mean of its divisors is an integer number (1248019707).

Almost surely, 2^4160065685 is an apocalyptic number.

It is an amenable number.

4160065685 is a deficient number, since it is larger than the sum of its proper divisors (832013143).

4160065685 is an equidigital number, since it uses as much as digits as its factorization.

4160065685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832013142.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 4160065685 is about 64498.5711857247. The cubic root of 4160065685 is about 1608.2987681786.

The spelling of 4160065685 in words is "four billion, one hundred sixty million, sixty-five thousand, six hundred eighty-five".