165500480 has 28 divisors (see below), whose sum is σ = 394098780. Its totient is φ = 66200064.

The previous prime is 165500471. The next prime is 165500483. The reversal of 165500480 is 84005561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 102900736 + 62599744 = 10144^2 + 7912^2 .

It is not an unprimeable number, because it can be changed into a prime (165500483) 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 3 ways as a sum of consecutive naturals, for example, 258275 + ... + 258914.

Almost surely, 2^165500480 is an apocalyptic number.

165500480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165500480 is an abundant number, since it is smaller than the sum of its proper divisors (228598300).

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

165500480 is an equidigital number, since it uses as much as digits as its factorization.

165500480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517206 (or 517196 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 165500480 is about 12864.6989859849. The cubic root of 165500480 is about 549.0346482181.

The spelling of 165500480 in words is "one hundred sixty-five million, five hundred thousand, four hundred eighty".