165041004 has 12 divisors (see below), whose sum is σ = 385095704. Its totient is φ = 55013664.

The previous prime is 165041003. The next prime is 165041027. The reversal of 165041004 is 400140561.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (165041003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6876697 + ... + 6876720.

Almost surely, 2^165041004 is an apocalyptic number.

It is an amenable number.

165041004 is an abundant number, since it is smaller than the sum of its proper divisors (220054700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165041004 is a wasteful number, since it uses less digits than its factorization.

165041004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13753424 (or 13753422 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 165041004 is about 12846.8285580528. The cubic root of 165041004 is about 548.5260856232.

Adding to 165041004 its reverse (400140561), we get a palindrome (565181565).

The spelling of 165041004 in words is "one hundred sixty-five million, forty-one thousand, four".