171166117121 has 8 divisors (see below), whose sum is σ = 171794937600. Its totient is φ = 170538383520.

The previous prime is 171166117117. The next prime is 171166117141. The reversal of 171166117121 is 121711661171.

171166117121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 171166117121 - 2² = 171166117117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171166117141) 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 7 ways as a sum of consecutive naturals, for example, 44501 + ... + 586781.

It is an arithmetic number, because the mean of its divisors is an integer number (21474367200).

Almost surely, 2^171166117121 is an apocalyptic number.

It is an amenable number.

171166117121 is a deficient number, since it is larger than the sum of its proper divisors (628820479).

171166117121 is an equidigital number, since it uses as much as digits as its factorization.

171166117121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543439.

The product of its digits is 3528, while the sum is 35.

Adding to 171166117121 its reverse (121711661171), we get a palindrome (292877778292).

The spelling of 171166117121 in words is "one hundred seventy-one billion, one hundred sixty-six million, one hundred seventeen thousand, one hundred twenty-one".