165085058 has 4 divisors (see below), whose sum is σ = 247627590. Its totient is φ = 82542528.

The previous prime is 165085051. The next prime is 165085061. The reversal of 165085058 is 850580561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 850580561 = 28669 ⋅29669.

It can be written as a sum of positive squares in only one way, i.e., 154082569 + 11002489 = 12413^2 + 3317^2 .

It is not an unprimeable number, because it can be changed into a prime (165085051) 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 as a sum of consecutive naturals, namely, 41271263 + ... + 41271266.

Almost surely, 2^165085058 is an apocalyptic number.

165085058 is a deficient number, since it is larger than the sum of its proper divisors (82542532).

165085058 is an equidigital number, since it uses as much as digits as its factorization.

165085058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82542531.

The product of its (nonzero) digits is 48000, while the sum is 38.

The square root of 165085058 is about 12848.5430302428. The cubic root of 165085058 is about 548.5748868662.

The spelling of 165085058 in words is "one hundred sixty-five million, eighty-five thousand, fifty-eight".