172101643411 has 4 divisors (see below), whose sum is σ = 182225269512. Its totient is φ = 161978017312.

The previous prime is 172101643397. The next prime is 172101643447. The reversal of 172101643411 is 114346101271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114346101271 = 78569 ⋅1455359.

It is a cyclic number.

It is not a de Polignac number, because 172101643411 - 2⁹ = 172101642899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172101643471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5061813025 + ... + 5061813058.

It is an arithmetic number, because the mean of its divisors is an integer number (45556317378).

Almost surely, 2^172101643411 is an apocalyptic number.

172101643411 is a deficient number, since it is larger than the sum of its proper divisors (10123626101).

172101643411 is a wasteful number, since it uses less digits than its factorization.

172101643411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10123626100.

The product of its (nonzero) digits is 4032, while the sum is 31.

Adding to 172101643411 its reverse (114346101271), we get a palindrome (286447744682).

The spelling of 172101643411 in words is "one hundred seventy-two billion, one hundred one million, six hundred forty-three thousand, four hundred eleven".