171118108811 has 32 divisors (see below), whose sum is σ = 189807045120. Its totient is φ = 153298220544.

The previous prime is 171118108793. The next prime is 171118108813. The reversal of 171118108811 is 118801811171.

It is a cyclic number.

It is not a de Polignac number, because 171118108811 - 2⁶ = 171118108747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171118108813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22790720 + ... + 22798226.

It is an arithmetic number, because the mean of its divisors is an integer number (5931470160).

Almost surely, 2^171118108811 is an apocalyptic number.

171118108811 is a deficient number, since it is larger than the sum of its proper divisors (18688936309).

171118108811 is a wasteful number, since it uses less digits than its factorization.

171118108811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7955.

The product of its (nonzero) digits is 3584, while the sum is 38.

Adding to 171118108811 its reverse (118801811171), we get a palindrome (289919919982).

The spelling of 171118108811 in words is "one hundred seventy-one billion, one hundred eighteen million, one hundred eight thousand, eight hundred eleven".