40165166 has 16 divisors (see below), whose sum is σ = 62233920. Its totient is φ = 19430400.

The previous prime is 40165163. The next prime is 40165187. The reversal of 40165166 is 66156104.

It is a super-2 number, since 2×40165166² = 3226481119615112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40165163) 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, 5966 + ... + 10766.

It is an arithmetic number, because the mean of its divisors is an integer number (3889620).

Almost surely, 2^40165166 is an apocalyptic number.

40165166 is a deficient number, since it is larger than the sum of its proper divisors (22068754).

40165166 is a wasteful number, since it uses less digits than its factorization.

40165166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4939.

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

The square root of 40165166 is about 6337.5993877808. The cubic root of 40165166 is about 342.4652594099.

The spelling of 40165166 in words is "forty million, one hundred sixty-five thousand, one hundred sixty-six".