4155665 has 8 divisors (see below), whose sum is σ = 5071680. Its totient is φ = 3267952.

The previous prime is 4155659. The next prime is 4155673. The reversal of 4155665 is 5665514.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4155665 - 2⁸ = 4155409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6749 + ... + 7338.

It is an arithmetic number, because the mean of its divisors is an integer number (633960).

Almost surely, 2^4155665 is an apocalyptic number.

It is an amenable number.

4155665 is a deficient number, since it is larger than the sum of its proper divisors (916015).

4155665 is a wasteful number, since it uses less digits than its factorization.

4155665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14151.

The product of its digits is 18000, while the sum is 32.

The square root of 4155665 is about 2038.5448241331. The cubic root of 4155665 is about 160.7731460358.

The spelling of 4155665 in words is "four million, one hundred fifty-five thousand, six hundred sixty-five".