165065072 has 10 divisors (see below), whose sum is σ = 319813608. Its totient is φ = 82532528.

The previous prime is 165065059. The next prime is 165065077. The reversal of 165065072 is 270560561.

It is a happy number.

165065072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165065077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5158268 + ... + 5158299.

Almost surely, 2^165065072 is an apocalyptic number.

It is an amenable number.

165065072 is a deficient number, since it is larger than the sum of its proper divisors (154748536).

165065072 is a wasteful number, since it uses less digits than its factorization.

165065072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10316575 (or 10316569 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 165065072 is about 12847.7652531481. The cubic root of 165065072 is about 548.5527482582.

The spelling of 165065072 in words is "one hundred sixty-five million, sixty-five thousand, seventy-two".