165305488 has 20 divisors (see below), whose sum is σ = 323453628. Its totient is φ = 81833600.

The previous prime is 165305449. The next prime is 165305509. The reversal of 165305488 is 884503561.

It can be written as a sum of positive squares in 2 ways, for example, as 95883264 + 69422224 = 9792^2 + 8332^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 165305488.

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, 49531 + ... + 52762.

Almost surely, 2^165305488 is an apocalyptic number.

It is an amenable number.

165305488 is a deficient number, since it is larger than the sum of its proper divisors (158148140).

165305488 is a wasteful number, since it uses less digits than its factorization.

165305488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102402 (or 102396 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 165305488 is about 12857.1181841033. The cubic root of 165305488 is about 548.8189400088.

The spelling of 165305488 in words is "one hundred sixty-five million, three hundred five thousand, four hundred eighty-eight".