171000000001 has 4 divisors (see below), whose sum is σ = 171258699604. Its totient is φ = 170741300400.

The previous prime is 170999999971. The next prime is 171000000037. The reversal of 171000000001 is 100000000171.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60417148401 + 110582851600 = 245799^2 + 332540^2 .

It is a cyclic number.

It is not a de Polignac number, because 171000000001 - 2¹³ = 170999991809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171000070001) 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 in 3 ways as a sum of consecutive naturals, for example, 129348810 + ... + 129350131.

It is an arithmetic number, because the mean of its divisors is an integer number (42814674901).

Almost surely, 2^171000000001 is an apocalyptic number.

It is an amenable number.

171000000001 is a deficient number, since it is larger than the sum of its proper divisors (258699603).

171000000001 is an equidigital number, since it uses as much as digits as its factorization.

171000000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258699602.

The product of its (nonzero) digits is 7, while the sum is 10.

Adding to 171000000001 its reverse (100000000171), we get a palindrome (271000000172).

The spelling of 171000000001 in words is "one hundred seventy-one billion, one", and thus it is an aban number.