71158545580 has 24 divisors (see below), whose sum is σ = 151111971360. Its totient is φ = 28143603840.

The previous prime is 71158545499. The next prime is 71158545599. The reversal of 71158545580 is 8554585117.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19986576 + ... + 19990135.

It is an arithmetic number, because the mean of its divisors is an integer number (6296332140).

Almost surely, 2^71158545580 is an apocalyptic number.

It is an amenable number.

71158545580 is an abundant number, since it is smaller than the sum of its proper divisors (79953425780).

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

71158545580 is a wasteful number, since it uses less digits than its factorization.

71158545580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39976809 (or 39976807 counting only the distinct ones).

The product of its (nonzero) digits is 1120000, while the sum is 49.

The spelling of 71158545580 in words is "seventy-one billion, one hundred fifty-eight million, five hundred forty-five thousand, five hundred eighty".