171285056173 has 16 divisors (see below), whose sum is σ = 214828959744. Its totient is φ = 132669650160.

The previous prime is 171285056167. The next prime is 171285056179. The reversal of 171285056173 is 371650582171.

171285056173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (171285056167) and next prime (171285056179).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171285056173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171285056179) 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 15 ways as a sum of consecutive naturals, for example, 6647265 + ... + 6672982.

It is an arithmetic number, because the mean of its divisors is an integer number (13426809984).

Almost surely, 2^171285056173 is an apocalyptic number.

It is an amenable number.

171285056173 is a deficient number, since it is larger than the sum of its proper divisors (43543903571).

171285056173 is a wasteful number, since it uses less digits than its factorization.

171285056173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13320432.

The product of its (nonzero) digits is 352800, while the sum is 46.

The spelling of 171285056173 in words is "one hundred seventy-one billion, two hundred eighty-five million, fifty-six thousand, one hundred seventy-three".