165670852 has 12 divisors (see below), whose sum is σ = 299921580. Its totient is φ = 79978976.

The previous prime is 165670849. The next prime is 165670877. The reversal of 165670852 is 258076561.

It can be written as a sum of positive squares in 2 ways, for example, as 81288256 + 84382596 = 9016^2 + 9186^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713983 + ... + 714214.

It is an arithmetic number, because the mean of its divisors is an integer number (24993465).

Almost surely, 2^165670852 is an apocalyptic number.

It is an amenable number.

165670852 is a deficient number, since it is larger than the sum of its proper divisors (134250728).

165670852 is a wasteful number, since it uses less digits than its factorization.

165670852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428230 (or 1428228 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 165670852 is about 12871.3189689324. The cubic root of 165670852 is about 549.2229821162. Note that the first 3 decimals are identical.

The spelling of 165670852 in words is "one hundred sixty-five million, six hundred seventy thousand, eight hundred fifty-two".