165800852 has 12 divisors (see below), whose sum is σ = 331601760. Its totient is φ = 71057496.

The previous prime is 165800849. The next prime is 165800861. The reversal of 165800852 is 258008561.

It is a happy number.

165800852 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2960702 + ... + 2960757.

It is an arithmetic number, because the mean of its divisors is an integer number (27633480).

Almost surely, 2^165800852 is an apocalyptic number.

It is an amenable number.

165800852 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

165800852 is a wasteful number, since it uses less digits than its factorization.

165800852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5921470 (or 5921468 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 165800852 is about 12876.3679661619. The cubic root of 165800852 is about 549.3666008631.

The spelling of 165800852 in words is "one hundred sixty-five million, eight hundred thousand, eight hundred fifty-two".