171051120689401 has 4 divisors (see below), whose sum is σ = 174690506236032. Its totient is φ = 167411735142772.

The previous prime is 171051120689387. The next prime is 171051120689417. The reversal of 171051120689401 is 104986021150171.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 171051120689401 - 2³⁵ = 171016760951033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171051120789401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1819692773245 + ... + 1819692773338.

It is an arithmetic number, because the mean of its divisors is an integer number (43672626559008).

Almost surely, 2^{171051120689401} is an apocalyptic number.

It is an amenable number.

171051120689401 is a deficient number, since it is larger than the sum of its proper divisors (3639385546631).

171051120689401 is an equidigital number, since it uses as much as digits as its factorization.

171051120689401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639385546630.

The product of its (nonzero) digits is 120960, while the sum is 46.

The spelling of 171051120689401 in words is "one hundred seventy-one trillion, fifty-one billion, one hundred twenty million, six hundred eighty-nine thousand, four hundred one".