171671672252 has 12 divisors (see below), whose sum is σ = 300616669416. Its totient is φ = 85781195280.

The previous prime is 171671672197. The next prime is 171671672261. The reversal of 171671672252 is 252276176171.

It is a junction number, because it is equal to n+sod(n) for n = 171671672197 and 171671672206.

It is a congruent number.

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, 13653143 + ... + 13665710.

It is an arithmetic number, because the mean of its divisors is an integer number (25051389118).

Almost surely, 2^171671672252 is an apocalyptic number.

It is an amenable number.

171671672252 is a deficient number, since it is larger than the sum of its proper divisors (128944997164).

171671672252 is a wasteful number, since it uses less digits than its factorization.

171671672252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27320428 (or 27320426 counting only the distinct ones).

The product of its digits is 493920, while the sum is 47.

The spelling of 171671672252 in words is "one hundred seventy-one billion, six hundred seventy-one million, six hundred seventy-two thousand, two hundred fifty-two".