171729718064112 has 160 divisors (see below), whose sum is σ = 492603454861056. Its totient is φ = 51217099315200.

The previous prime is 171729718064083. The next prime is 171729718064209. The reversal of 171729718064112 is 211460817927171.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20913189 + ... + 27943172.

Almost surely, 2^{171729718064112} is an apocalyptic number.

171729718064112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

171729718064112 is an abundant number, since it is smaller than the sum of its proper divisors (320873736796944).

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

171729718064112 is a wasteful number, since it uses less digits than its factorization.

171729718064112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48856559 (or 48856553 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 57.

The spelling of 171729718064112 in words is "one hundred seventy-one trillion, seven hundred twenty-nine billion, seven hundred eighteen million, sixty-four thousand, one hundred twelve".