165148636 has 12 divisors (see below), whose sum is σ = 294463512. Its totient is φ = 81016208.

The previous prime is 165148619. The next prime is 165148639. The reversal of 165148636 is 636841561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165148639) 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, 389290 + ... + 389713.

It is an arithmetic number, because the mean of its divisors is an integer number (24538626).

Almost surely, 2^165148636 is an apocalyptic number.

It is an amenable number.

165148636 is a deficient number, since it is larger than the sum of its proper divisors (129314876).

165148636 is a wasteful number, since it uses less digits than its factorization.

165148636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779060 (or 779058 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 165148636 is about 12851.0169247418. The cubic root of 165148636 is about 548.6453007045.

The spelling of 165148636 in words is "one hundred sixty-five million, one hundred forty-eight thousand, six hundred thirty-six".