171242111124661 has 8 divisors (see below), whose sum is σ = 177569796751200. Its totient is φ = 164942611181040.

The previous prime is 171242111124589. The next prime is 171242111124683. The reversal of 171242111124661 is 166421111242171.

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

It is a cyclic number.

It is not a de Polignac number, because 171242111124661 - 2¹¹ = 171242111122613 is a prime.

It is a super-2 number, since 2×171242111124661² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171242111122661) 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, 7046408355 + ... + 7046432656.

It is an arithmetic number, because the mean of its divisors is an integer number (22196224593900).

Almost surely, 2^{171242111124661} is an apocalyptic number.

It is an amenable number.

171242111124661 is a deficient number, since it is larger than the sum of its proper divisors (6327685626539).

171242111124661 is a wasteful number, since it uses less digits than its factorization.

171242111124661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14092841459.

The product of its digits is 32256, while the sum is 40.

The spelling of 171242111124661 in words is "one hundred seventy-one trillion, two hundred forty-two billion, one hundred eleven million, one hundred twenty-four thousand, six hundred sixty-one".