171474942256 has 20 divisors (see below), whose sum is σ = 346677601392. Its totient is φ = 82009754816.

The previous prime is 171474942241. The next prime is 171474942313. The reversal of 171474942256 is 652249474171.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232981891 + ... + 232982626.

Almost surely, 2^171474942256 is an apocalyptic number.

171474942256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

171474942256 is an abundant number, since it is smaller than the sum of its proper divisors (175202659136).

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

171474942256 is a wasteful number, since it uses less digits than its factorization.

171474942256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465964548 (or 465964542 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 52.

The spelling of 171474942256 in words is "one hundred seventy-one billion, four hundred seventy-four million, nine hundred forty-two thousand, two hundred fifty-six".