6165661 has 8 divisors (see below), whose sum is σ = 6441120. Its totient is φ = 5894448.

The previous prime is 6165637. The next prime is 6165673. The reversal of 6165661 is 1665616.

6165661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6165661 - 2⁵ = 6165629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6165461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2110 + ... + 4096.

It is an arithmetic number, because the mean of its divisors is an integer number (805140).

Almost surely, 2^6165661 is an apocalyptic number.

It is an amenable number.

6165661 is a deficient number, since it is larger than the sum of its proper divisors (275459).

6165661 is a wasteful number, since it uses less digits than its factorization.

6165661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123.

The product of its digits is 6480, while the sum is 31.

The square root of 6165661 is about 2483.0749082539. The cubic root of 6165661 is about 183.3692664186.

The spelling of 6165661 in words is "six million, one hundred sixty-five thousand, six hundred sixty-one".