6115665 has 32 divisors (see below), whose sum is σ = 10730880. Its totient is φ = 2960384.

The previous prime is 6115661. The next prime is 6115667. The reversal of 6115665 is 5665116.

It is a cyclic number.

It is not a de Polignac number, because 6115665 - 2² = 6115661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6115661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6982 + ... + 7808.

It is an arithmetic number, because the mean of its divisors is an integer number (335340).

Almost surely, 2^6115665 is an apocalyptic number.

It is an amenable number.

6115665 is a deficient number, since it is larger than the sum of its proper divisors (4615215).

6115665 is a wasteful number, since it uses less digits than its factorization.

6115665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881.

The product of its digits is 5400, while the sum is 30.

The square root of 6115665 is about 2472.9870602169. The cubic root of 6115665 is about 182.8722868956.

The spelling of 6115665 in words is "six million, one hundred fifteen thousand, six hundred sixty-five".