165000560 has 40 divisors (see below), whose sum is σ = 403820880. Its totient is φ = 62525952.

The previous prime is 165000553. The next prime is 165000593. The reversal of 165000560 is 65000561.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52757 + ... + 55796.

It is an arithmetic number, because the mean of its divisors is an integer number (10095522).

Almost surely, 2^165000560 is an apocalyptic number.

165000560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165000560 is an abundant number, since it is smaller than the sum of its proper divisors (238820320).

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

165000560 is a wasteful number, since it uses less digits than its factorization.

165000560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108585 (or 108579 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 165000560 is about 12845.2543766171. The cubic root of 165000560 is about 548.4812757459.

Subtracting from 165000560 its reverse (65000561), we obtain a palindrome (99999999).

The spelling of 165000560 in words is "one hundred sixty-five million, five hundred sixty", and thus it is an aban number.