165505276 has 24 divisors (see below), whose sum is σ = 309438080. Its totient is φ = 77224752.

The previous prime is 165505247. The next prime is 165505279. The reversal of 165505276 is 672505561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165505279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11160 + ... + 21343.

Almost surely, 2^165505276 is an apocalyptic number.

It is an amenable number.

165505276 is a deficient number, since it is larger than the sum of its proper divisors (143932804).

165505276 is a wasteful number, since it uses less digits than its factorization.

165505276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32593 (or 32591 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 165505276 is about 12864.8853861976. The cubic root of 165505276 is about 549.0399516161.

The spelling of 165505276 in words is "one hundred sixty-five million, five hundred five thousand, two hundred seventy-six".