71366064880728 has 64 divisors (see below), whose sum is σ = 186241082173920. Its totient is φ = 22766312217600.

The previous prime is 71366064880711. The next prime is 71366064880763. The reversal of 71366064880728 is 82708846066317.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 658693293 + ... + 658801628.

Almost surely, 2^{71366064880728} is an apocalyptic number.

It is an amenable number.

71366064880728 is an abundant number, since it is smaller than the sum of its proper divisors (114875017293192).

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

71366064880728 is a wasteful number, since it uses less digits than its factorization.

71366064880728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317495028 (or 1317495024 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 66.

The spelling of 71366064880728 in words is "seventy-one trillion, three hundred sixty-six billion, sixty-four million, eight hundred eighty thousand, seven hundred twenty-eight".