71766642065752 has 16 divisors (see below), whose sum is σ = 134583959873160. Its totient is φ = 35877586099584.

The previous prime is 71766642065611. The next prime is 71766642065821. The reversal of 71766642065752 is 25756024666717.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 716813478 + ... + 716913589.

Almost surely, 2^{71766642065752} is an apocalyptic number.

It is an amenable number.

71766642065752 is a deficient number, since it is larger than the sum of its proper divisors (62817317807408).

71766642065752 is a wasteful number, since it uses less digits than its factorization.

71766642065752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433733330 (or 1433733326 counting only the distinct ones).

The product of its (nonzero) digits is 177811200, while the sum is 64.

The spelling of 71766642065752 in words is "seventy-one trillion, seven hundred sixty-six billion, six hundred forty-two million, sixty-five thousand, seven hundred fifty-two".