170198327601 has 45 divisors (see below), whose sum is σ = 265915139259. Its totient is φ = 108477810144.

The previous prime is 170198327599. The next prime is 170198327609. The reversal of 170198327601 is 106723891071.

The square root of 170198327601 is 412551.

It is a perfect power (a square), and thus also a powerful number.

170198327601 is a `hidden beast` number, since 1 + 7 + 0 + 1 + 9 + 8 + 32 + 7 + 601 = 666.

It can be written as a sum of positive squares in only one way, i.e., 124563114225 + 45635213376 = 352935^2 + 213624^2 .

It is not a de Polignac number, because 170198327601 - 2¹ = 170198327599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (170198327609) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 85397061 + ... + 85399053.

Almost surely, 2^170198327601 is an apocalyptic number.

170198327601 is the 412551-st square number.

170198327601 is the 206276-th centered octagonal number.

It is an amenable number.

170198327601 is a deficient number, since it is larger than the sum of its proper divisors (95716811658).

170198327601 is an frugal number, since it uses more digits than its factorization.

170198327601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4044 (or 2019 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 170198327601 in words is "one hundred seventy billion, one hundred ninety-eight million, three hundred twenty-seven thousand, six hundred one".