71180100168221 has 32 divisors (see below), whose sum is σ = 82324589469696. Its totient is φ = 60927588072000.

The previous prime is 71180100168211. The next prime is 71180100168241. The reversal of 71180100168221 is 12286100108117.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 71180100168221 - 2⁶ = 71180100168157 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 (71180100168211) 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 31 ways as a sum of consecutive naturals, for example, 670805456 + ... + 670911558.

It is an arithmetic number, because the mean of its divisors is an integer number (2572643420928).

Almost surely, 2^{71180100168221} is an apocalyptic number.

It is an amenable number.

71180100168221 is a deficient number, since it is larger than the sum of its proper divisors (11144489301475).

71180100168221 is a wasteful number, since it uses less digits than its factorization.

71180100168221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159353.

The product of its (nonzero) digits is 10752, while the sum is 38.

The spelling of 71180100168221 in words is "seventy-one trillion, one hundred eighty billion, one hundred million, one hundred sixty-eight thousand, two hundred twenty-one".