171050830081 has 4 divisors (see below), whose sum is σ = 172140325972. Its totient is φ = 169961334192.

The previous prime is 171050830079. The next prime is 171050830087. The reversal of 171050830081 is 180038050171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 180038050171 = 7 ⋅25719721453.

It can be written as a sum of positive squares in 2 ways, for example, as 64617640000 + 106433190081 = 254200^2 + 326241^2 .

It is a cyclic number.

It is not a de Polignac number, because 171050830081 - 2¹ = 171050830079 is a prime.

It is a super-2 number, since 2×171050830081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171050830087) 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, 544747710 + ... + 544748023.

It is an arithmetic number, because the mean of its divisors is an integer number (43035081493).

Almost surely, 2^171050830081 is an apocalyptic number.

It is an amenable number.

171050830081 is a deficient number, since it is larger than the sum of its proper divisors (1089495891).

171050830081 is a wasteful number, since it uses less digits than its factorization.

171050830081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089495890.

The product of its (nonzero) digits is 6720, while the sum is 34.

The spelling of 171050830081 in words is "one hundred seventy-one billion, fifty million, eight hundred thirty thousand, eighty-one".