165089755 has 4 divisors (see below), whose sum is σ = 198107712. Its totient is φ = 132071800.

The previous prime is 165089711. The next prime is 165089759. The reversal of 165089755 is 557980561.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 165089755 - 2⁷ = 165089627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165089759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16508971 + ... + 16508980.

It is an arithmetic number, because the mean of its divisors is an integer number (49526928).

Almost surely, 2^165089755 is an apocalyptic number.

165089755 is a deficient number, since it is larger than the sum of its proper divisors (33017957).

165089755 is an equidigital number, since it uses as much as digits as its factorization.

165089755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33017956.

The product of its (nonzero) digits is 378000, while the sum is 46.

The square root of 165089755 is about 12848.7258123131. The cubic root of 165089755 is about 548.5800895010.

The spelling of 165089755 in words is "one hundred sixty-five million, eighty-nine thousand, seven hundred fifty-five".