171116506 has 24 divisors (see below), whose sum is σ = 284215680. Its totient is φ = 77205480.

The previous prime is 171116447. The next prime is 171116513. The reversal of 171116506 is 605611171.

171116506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31095 + ... + 36181.

It is an arithmetic number, because the mean of its divisors is an integer number (11842320).

Almost surely, 2^171116506 is an apocalyptic number.

171116506 is a deficient number, since it is larger than the sum of its proper divisors (113099174).

171116506 is a wasteful number, since it uses less digits than its factorization.

171116506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250 (or 5239 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 171116506 is about 13081.1507903548. The cubic root of 171116506 is about 555.1759375117.

Adding to 171116506 its reverse (605611171), we get a palindrome (776727677).

The spelling of 171116506 in words is "one hundred seventy-one million, one hundred sixteen thousand, five hundred six".