165217036 has 12 divisors (see below), whose sum is σ = 293870080. Its totient is φ = 81254160.

The previous prime is 165217021. The next prime is 165217037. The reversal of 165217036 is 630712561.

It is a junction number, because it is equal to n+sod(n) for n = 165216989 and 165217007.

It is not an unprimeable number, because it can be changed into a prime (165217037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338316 + ... + 338803.

Almost surely, 2^165217036 is an apocalyptic number.

It is an amenable number.

165217036 is a deficient number, since it is larger than the sum of its proper divisors (128653044).

165217036 is a wasteful number, since it uses less digits than its factorization.

165217036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677184 (or 677182 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 165217036 is about 12853.6779172344. The cubic root of 165217036 is about 548.7210348225.

Adding to 165217036 its reverse (630712561), we get a palindrome (795929597).

The spelling of 165217036 in words is "one hundred sixty-five million, two hundred seventeen thousand, thirty-six".