165770752 has 80 divisors (see below), whose sum is σ = 395188992. Its totient is φ = 67921920.

The previous prime is 165770711. The next prime is 165770771. The reversal of 165770752 is 257077561.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81427 + ... + 83437.

Almost surely, 2^165770752 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 165770752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197594496).

165770752 is an abundant number, since it is smaller than the sum of its proper divisors (229418240).

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

165770752 is an equidigital number, since it uses as much as digits as its factorization.

165770752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059 (or 2043 counting only the distinct ones).

The product of its (nonzero) digits is 102900, while the sum is 40.

The square root of 165770752 is about 12875.1991052566. The cubic root of 165770752 is about 549.3333542799. Note that the first 4 decimals are identical.

The spelling of 165770752 in words is "one hundred sixty-five million, seven hundred seventy thousand, seven hundred fifty-two".