171216066833 has 16 divisors (see below), whose sum is σ = 201779036160. Its totient is φ = 142239612816.

The previous prime is 171216066821. The next prime is 171216066839. The reversal of 171216066833 is 338660612171.

It is not a de Polignac number, because 171216066833 - 2¹⁴ = 171216050449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171216066839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2492393 + ... + 2560166.

It is an arithmetic number, because the mean of its divisors is an integer number (12611189760).

Almost surely, 2^171216066833 is an apocalyptic number.

It is an amenable number.

171216066833 is a deficient number, since it is larger than the sum of its proper divisors (30562969327).

171216066833 is a wasteful number, since it uses less digits than its factorization.

171216066833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052716.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 171216066833 in words is "one hundred seventy-one billion, two hundred sixteen million, sixty-six thousand, eight hundred thirty-three".