71660566288 has 40 divisors (see below), whose sum is σ = 147046565600. Its totient is φ = 33736207104.

The previous prime is 71660566283. The next prime is 71660566339. The reversal of 71660566288 is 88266506617.

It is not an unprimeable number, because it can be changed into a prime (71660566283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 673533 + ... + 772636.

It is an arithmetic number, because the mean of its divisors is an integer number (3676164140).

Almost surely, 2^71660566288 is an apocalyptic number.

It is an amenable number.

71660566288 is an abundant number, since it is smaller than the sum of its proper divisors (75385999312).

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

71660566288 is a wasteful number, since it uses less digits than its factorization.

71660566288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446359 (or 1446353 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 71660566288 in words is "seventy-one billion, six hundred sixty million, five hundred sixty-six thousand, two hundred eighty-eight".