165069712 has 40 divisors (see below), whose sum is σ = 334728576. Its totient is φ = 78710016.

The previous prime is 165069703. The next prime is 165069713. The reversal of 165069712 is 217960561.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (165069713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226693 + ... + 227419.

Almost surely, 2^165069712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165069712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167364288).

165069712 is an abundant number, since it is smaller than the sum of its proper divisors (169658864).

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

165069712 is a wasteful number, since it uses less digits than its factorization.

165069712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375 (or 1369 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 165069712 is about 12847.9458280303. The cubic root of 165069712 is about 548.5578881723.

The spelling of 165069712 in words is "one hundred sixty-five million, sixty-nine thousand, seven hundred twelve".