171181885468157 has 16 divisors (see below), whose sum is σ = 177300046627200. Its totient is φ = 165078089682240.

The previous prime is 171181885468141. The next prime is 171181885468249. The reversal of 171181885468157 is 751864588181171.

It is a cyclic number.

It is not a de Polignac number, because 171181885468157 - 2⁴ = 171181885468141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171181885467157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1767866378 + ... + 1767963204.

It is an arithmetic number, because the mean of its divisors is an integer number (11081252914200).

Almost surely, 2^{171181885468157} is an apocalyptic number.

It is an amenable number.

171181885468157 is a deficient number, since it is larger than the sum of its proper divisors (6118161159043).

171181885468157 is an equidigital number, since it uses as much as digits as its factorization.

171181885468157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170356.

The product of its digits is 120422400, while the sum is 71.

The spelling of 171181885468157 in words is "one hundred seventy-one trillion, one hundred eighty-one billion, eight hundred eighty-five million, four hundred sixty-eight thousand, one hundred fifty-seven".