171506047342 has 16 divisors (see below), whose sum is σ = 295883048160. Its totient is φ = 73034421408.

The previous prime is 171506047337. The next prime is 171506047343. The reversal of 171506047342 is 243740605171.

It is a junction number, because it is equal to n+sod(n) for n = 171506047295 and 171506047304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171506047343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39011917 + ... + 39016312.

It is an arithmetic number, because the mean of its divisors is an integer number (18492690510).

Almost surely, 2^171506047342 is an apocalyptic number.

171506047342 is a deficient number, since it is larger than the sum of its proper divisors (124377000818).

171506047342 is a wasteful number, since it uses less digits than its factorization.

171506047342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78028395.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 171506047342 in words is "one hundred seventy-one billion, five hundred six million, forty-seven thousand, three hundred forty-two".