667165 has 16 divisors (see below), whose sum is σ = 870912. Its totient is φ = 488704.

The previous prime is 667141. The next prime is 667171. The reversal of 667165 is 561766.

667165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 667165 - 2¹¹ = 665117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3912 + ... + 4078.

It is an arithmetic number, because the mean of its divisors is an integer number (54432).

2⁶⁶⁷¹⁶⁵ is an apocalyptic number.

It is an amenable number.

667165 is a deficient number, since it is larger than the sum of its proper divisors (203747).

667165 is a wasteful number, since it uses less digits than its factorization.

667165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236.

The product of its digits is 7560, while the sum is 31.

The square root of 667165 is about 816.8016895183. The cubic root of 667165 is about 87.3798077656.

The spelling of 667165 in words is "six hundred sixty-seven thousand, one hundred sixty-five".