165680152 has 64 divisors (see below), whose sum is σ = 359251200. Its totient is φ = 70842240.

The previous prime is 165680149. The next prime is 165680153. The reversal of 165680152 is 251086561.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165680153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329133 + ... + 329635.

It is an arithmetic number, because the mean of its divisors is an integer number (5613300).

Almost surely, 2^165680152 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 165680152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179625600).

165680152 is an abundant number, since it is smaller than the sum of its proper divisors (193571048).

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

165680152 is a wasteful number, since it uses less digits than its factorization.

165680152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 165680152 is about 12871.6802321997. The cubic root of 165680152 is about 549.2332588750.

The spelling of 165680152 in words is "one hundred sixty-five million, six hundred eighty thousand, one hundred fifty-two".