165340480 has 28 divisors (see below), whose sum is σ = 393717780. Its totient is φ = 66136064.

The previous prime is 165340459. The next prime is 165340493. The reversal of 165340480 is 84043561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 81288256 + 84052224 = 9016^2 + 9168^2 .

It is a congruent number.

It is an unprimeable number.

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, 258025 + ... + 258664.

Almost surely, 2^165340480 is an apocalyptic number.

165340480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165340480 is an abundant number, since it is smaller than the sum of its proper divisors (228377300).

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

165340480 is an equidigital number, since it uses as much as digits as its factorization.

165340480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516706 (or 516696 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 165340480 is about 12858.4789147084. The cubic root of 165340480 is about 548.8576620897.

The spelling of 165340480 in words is "one hundred sixty-five million, three hundred forty thousand, four hundred eighty".