165212036 has 48 divisors (see below), whose sum is σ = 334817280. Its totient is φ = 70588320.

The previous prime is 165212027. The next prime is 165212041. The reversal of 165212036 is 630212561.

It is a junction number, because it is equal to n+sod(n) for n = 165211996 and 165212014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58325 + ... + 61091.

It is an arithmetic number, because the mean of its divisors is an integer number (6975360).

Almost surely, 2^165212036 is an apocalyptic number.

It is an amenable number.

165212036 is an abundant number, since it is smaller than the sum of its proper divisors (169605244).

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

165212036 is a wasteful number, since it uses less digits than its factorization.

165212036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864 (or 2862 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 165212036 is about 12853.4834189024. The cubic root of 165212036 is about 548.7154994110.

Adding to 165212036 its reverse (630212561), we get a palindrome (795424597).

The spelling of 165212036 in words is "one hundred sixty-five million, two hundred twelve thousand, thirty-six".