171706020071 has 4 divisors (see below), whose sum is σ = 172047384432. Its totient is φ = 171364655712.

The previous prime is 171706020067. The next prime is 171706020127. The reversal of 171706020071 is 170020607171.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 171706020071 - 2² = 171706020067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171706020041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170681426 + ... + 170682431.

It is an arithmetic number, because the mean of its divisors is an integer number (43011846108).

Almost surely, 2^171706020071 is an apocalyptic number.

171706020071 is a deficient number, since it is larger than the sum of its proper divisors (341364361).

171706020071 is an equidigital number, since it uses as much as digits as its factorization.

171706020071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341364360.

The product of its (nonzero) digits is 4116, while the sum is 32.

The spelling of 171706020071 in words is "one hundred seventy-one billion, seven hundred six million, twenty thousand, seventy-one".