165442036 has 24 divisors (see below), whose sum is σ = 305242560. Its totient is φ = 78304512.

The previous prime is 165442031. The next prime is 165442049. The reversal of 165442036 is 630244561.

It is a junction number, because it is equal to n+sod(n) for n = 165441989 and 165442007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165442031) 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, 346 + ... + 18193.

It is an arithmetic number, because the mean of its divisors is an integer number (12718440).

Almost surely, 2^165442036 is an apocalyptic number.

It is an amenable number.

165442036 is a deficient number, since it is larger than the sum of its proper divisors (139800524).

165442036 is a wasteful number, since it uses less digits than its factorization.

165442036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18663 (or 18661 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 165442036 is about 12862.4272981424. The cubic root of 165442036 is about 548.9700128389.

Adding to 165442036 its reverse (630244561), we get a palindrome (795686597).

The spelling of 165442036 in words is "one hundred sixty-five million, four hundred forty-two thousand, thirty-six".