171157688886448 has 40 divisors (see below), whose sum is σ = 364526680959936. Its totient is φ = 77205064372800.

The previous prime is 171157688886433. The next prime is 171157688886449. The reversal of 171157688886448 is 844688886751171.

It is not an unprimeable number, because it can be changed into a prime (171157688886449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3711758886 + ... + 3711804997.

Almost surely, 2^{171157688886448} is an apocalyptic number.

It is an amenable number.

171157688886448 is an abundant number, since it is smaller than the sum of its proper divisors (193368992073488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171157688886448 is a wasteful number, since it uses less digits than its factorization.

171157688886448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7423564033 (or 7423564027 counting only the distinct ones).

The product of its digits is 4624220160, while the sum is 82.

The spelling of 171157688886448 in words is "one hundred seventy-one trillion, one hundred fifty-seven billion, six hundred eighty-eight million, eight hundred eighty-six thousand, four hundred forty-eight".