165067755 has 16 divisors (see below), whose sum is σ = 270251520. Its totient is φ = 85988448.

The previous prime is 165067753. The next prime is 165067783. The reversal of 165067755 is 557760561.

It is not a de Polignac number, because 165067755 - 2¹ = 165067753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165067753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127315 + ... + 128604.

It is an arithmetic number, because the mean of its divisors is an integer number (16890720).

Almost surely, 2^165067755 is an apocalyptic number.

165067755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165067755 is a deficient number, since it is larger than the sum of its proper divisors (105183765).

165067755 is a wasteful number, since it uses less digits than its factorization.

165067755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255970.

The product of its (nonzero) digits is 220500, while the sum is 42.

The square root of 165067755 is about 12847.8696677698. The cubic root of 165067755 is about 548.5557203366. Note that the first 3 decimals are identical.

The spelling of 165067755 in words is "one hundred sixty-five million, sixty-seven thousand, seven hundred fifty-five".