165057161010171 has 8 divisors (see below), whose sum is σ = 220077142021440. Its totient is φ = 110037643669512.

The previous prime is 165057161010107. The next prime is 165057161010191. The reversal of 165057161010171 is 171010161750561.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 165057161010171 - 2⁶ = 165057161010107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165057161010191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115086181 + ... + 116511558.

It is an arithmetic number, because the mean of its divisors is an integer number (27509642752680).

Almost surely, 2^{165057161010171} is an apocalyptic number.

165057161010171 is a deficient number, since it is larger than the sum of its proper divisors (55019981011269).

165057161010171 is a wasteful number, since it uses less digits than its factorization.

165057161010171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231835305.

The product of its (nonzero) digits is 44100, while the sum is 42.

The spelling of 165057161010171 in words is "one hundred sixty-five trillion, fifty-seven billion, one hundred sixty-one million, ten thousand, one hundred seventy-one".