171129195201 has 8 divisors (see below), whose sum is σ = 228494085760. Its totient is φ = 113925217392.

The previous prime is 171129195187. The next prime is 171129195277. The reversal of 171129195201 is 102591921171.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 171129195201 - 2⁶ = 171129195137 is a prime.

It is a super-2 number, since 2×171129195201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 171129195201.

It is not an unprimeable number, because it can be changed into a prime (171129195401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40225705 + ... + 40229958.

It is an arithmetic number, because the mean of its divisors is an integer number (28561760720).

Almost surely, 2^171129195201 is an apocalyptic number.

It is an amenable number.

171129195201 is a deficient number, since it is larger than the sum of its proper divisors (57364890559).

171129195201 is an equidigital number, since it uses as much as digits as its factorization.

171129195201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80456375.

The product of its (nonzero) digits is 11340, while the sum is 39.

The spelling of 171129195201 in words is "one hundred seventy-one billion, one hundred twenty-nine million, one hundred ninety-five thousand, two hundred one".