71756060020 has 24 divisors (see below), whose sum is σ = 150699780000. Its totient is φ = 28700128032.

The previous prime is 71756060017. The next prime is 71756060093. The reversal of 71756060020 is 2006065717.

It is a congruent number.

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, 125031 + ... + 398929.

It is an arithmetic number, because the mean of its divisors is an integer number (6279157500).

Almost surely, 2^71756060020 is an apocalyptic number.

It is an amenable number.

71756060020 is an abundant number, since it is smaller than the sum of its proper divisors (78943719980).

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

71756060020 is a wasteful number, since it uses less digits than its factorization.

71756060020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287007 (or 287005 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The spelling of 71756060020 in words is "seventy-one billion, seven hundred fifty-six million, sixty thousand, twenty".