165383560 has 16 divisors (see below), whose sum is σ = 372113100. Its totient is φ = 66153408.

The previous prime is 165383551. The next prime is 165383563. The reversal of 165383560 is 65383561.

165383560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 154107396 + 11276164 = 12414^2 + 3358^2 .

It is not an unprimeable number, because it can be changed into a prime (165383563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2067255 + ... + 2067334.

Almost surely, 2^165383560 is an apocalyptic number.

165383560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165383560 is an abundant number, since it is smaller than the sum of its proper divisors (206729540).

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

165383560 is a wasteful number, since it uses less digits than its factorization.

165383560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134600 (or 4134596 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 165383560 is about 12860.1539648637. The cubic root of 165383560 is about 548.9053268334.

Subtracting from 165383560 its reverse (65383561), we obtain a palindrome (99999999).

The spelling of 165383560 in words is "one hundred sixty-five million, three hundred eighty-three thousand, five hundred sixty".