171345156860 has 12 divisors (see below), whose sum is σ = 359824829448. Its totient is φ = 68538062736.

The previous prime is 171345156839. The next prime is 171345156877. The reversal of 171345156860 is 68651543171.

It is a happy number.

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, 4283628902 + ... + 4283628941.

It is an arithmetic number, because the mean of its divisors is an integer number (29985402454).

Almost surely, 2^171345156860 is an apocalyptic number.

171345156860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171345156860 is an abundant number, since it is smaller than the sum of its proper divisors (188479672588).

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

171345156860 is a wasteful number, since it uses less digits than its factorization.

171345156860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8567257852 (or 8567257850 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 171345156860 in words is "one hundred seventy-one billion, three hundred forty-five million, one hundred fifty-six thousand, eight hundred sixty".