71580217126056 has 32 divisors (see below), whose sum is σ = 179587377504000. Its totient is φ = 23775161083520.

The previous prime is 71580217126037. The next prime is 71580217126057. The reversal of 71580217126056 is 65062171208517.

It is not an unprimeable number, because it can be changed into a prime (71580217126057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5306948856 + ... + 5306962343.

It is an arithmetic number, because the mean of its divisors is an integer number (5612105547000).

Almost surely, 2^{71580217126056} is an apocalyptic number.

It is an amenable number.

71580217126056 is an abundant number, since it is smaller than the sum of its proper divisors (108007160377944).

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

71580217126056 is a wasteful number, since it uses less digits than its factorization.

71580217126056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10613911489 (or 10613911485 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 51.

The spelling of 71580217126056 in words is "seventy-one trillion, five hundred eighty billion, two hundred seventeen million, one hundred twenty-six thousand, fifty-six".