171220217060848 has 80 divisors (see below), whose sum is σ = 337105296380160. Its totient is φ = 84233892460032.

The previous prime is 171220217060833. The next prime is 171220217060857. The reversal of 171220217060848 is 848060712022171.

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 15 ways as a sum of consecutive naturals, for example, 1305832540 + ... + 1305963652.

It is an arithmetic number, because the mean of its divisors is an integer number (4213816204752).

Almost surely, 2^{171220217060848} is an apocalyptic number.

It is an amenable number.

171220217060848 is a deficient number, since it is larger than the sum of its proper divisors (165885079319312).

171220217060848 is a wasteful number, since it uses less digits than its factorization.

171220217060848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135206 (or 135200 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 49.

The spelling of 171220217060848 in words is "one hundred seventy-one trillion, two hundred twenty billion, two hundred seventeen million, sixty thousand, eight hundred forty-eight".