171008855142 has 16 divisors (see below), whose sum is σ = 353050540032. Its totient is φ = 55164146760.

The previous prime is 171008855137. The next prime is 171008855153. The reversal of 171008855142 is 241558800171.

It is a junction number, because it is equal to n+sod(n) for n = 171008855094 and 171008855103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459701038 + ... + 459701409.

It is an arithmetic number, because the mean of its divisors is an integer number (22065658752).

Almost surely, 2^171008855142 is an apocalyptic number.

171008855142 is an abundant number, since it is smaller than the sum of its proper divisors (182041684890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171008855142 is a wasteful number, since it uses less digits than its factorization.

171008855142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919402483.

The product of its (nonzero) digits is 89600, while the sum is 42.

The spelling of 171008855142 in words is "one hundred seventy-one billion, eight million, eight hundred fifty-five thousand, one hundred forty-two".