171416686943039 has 4 divisors (see below), whose sum is σ = 173831006477520. Its totient is φ = 169002367408560.

The previous prime is 171416686943023. The next prime is 171416686943083. The reversal of 171416686943039 is 930349686614171.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 171416686943039 - 2⁴ = 171416686943023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 171416686943039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171416685943039) 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, 1207159767134 + ... + 1207159767275.

It is an arithmetic number, because the mean of its divisors is an integer number (43457751619380).

Almost surely, 2^{171416686943039} is an apocalyptic number.

171416686943039 is a deficient number, since it is larger than the sum of its proper divisors (2414319534481).

171416686943039 is an equidigital number, since it uses as much as digits as its factorization.

171416686943039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414319534480.

The product of its (nonzero) digits is 141087744, while the sum is 68.

The spelling of 171416686943039 in words is "one hundred seventy-one trillion, four hundred sixteen billion, six hundred eighty-six million, nine hundred forty-three thousand, thirty-nine".