171617011612 has 12 divisors (see below), whose sum is σ = 300338519040. Its totient is φ = 85806006176.

The previous prime is 171617011609. The next prime is 171617011663. The reversal of 171617011612 is 216110716171.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465937 + ... + 748552.

It is an arithmetic number, because the mean of its divisors is an integer number (25028209920).

Almost surely, 2^171617011612 is an apocalyptic number.

It is an amenable number.

171617011612 is a deficient number, since it is larger than the sum of its proper divisors (128721507428).

171617011612 is a wasteful number, since it uses less digits than its factorization.

171617011612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249820 (or 1249818 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 34.

Adding to 171617011612 its reverse (216110716171), we get a palindrome (387727727783).

The spelling of 171617011612 in words is "one hundred seventy-one billion, six hundred seventeen million, eleven thousand, six hundred twelve".