4161665 has 16 divisors (see below), whose sum is σ = 5339520. Its totient is φ = 3104640.

The previous prime is 4161653. The next prime is 4161667. The reversal of 4161665 is 5661614.

It is not a de Polignac number, because 4161665 - 2¹⁰ = 4160641 is a prime.

It is a super-3 number, since 3×4161665³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (4161667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6437 + ... + 7053.

It is an arithmetic number, because the mean of its divisors is an integer number (333720).

Almost surely, 2^4161665 is an apocalyptic number.

It is an amenable number.

4161665 is a deficient number, since it is larger than the sum of its proper divisors (1177855).

4161665 is a wasteful number, since it uses less digits than its factorization.

4161665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712.

The product of its digits is 4320, while the sum is 29.

The square root of 4161665 is about 2040.0159313103. The cubic root of 4161665 is about 160.8504842392.

The spelling of 4161665 in words is "four million, one hundred sixty-one thousand, six hundred sixty-five".