171551561610162 has 16 divisors (see below), whose sum is σ = 343223215352352. Its totient is φ = 57163838514720.

The previous prime is 171551561610157. The next prime is 171551561610173. The reversal of 171551561610162 is 261016165155171.

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, 5003820264 + ... + 5003854547.

It is an arithmetic number, because the mean of its divisors is an integer number (21451450959522).

Almost surely, 2^{171551561610162} is an apocalyptic number.

171551561610162 is an abundant number, since it is smaller than the sum of its proper divisors (171671653742190).

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

171551561610162 is a wasteful number, since it uses less digits than its factorization.

171551561610162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10007677673.

The product of its (nonzero) digits is 378000, while the sum is 48.

The spelling of 171551561610162 in words is "one hundred seventy-one trillion, five hundred fifty-one billion, five hundred sixty-one million, six hundred ten thousand, one hundred sixty-two".