71613304457668 has 12 divisors (see below), whose sum is σ = 125323368927120. Its totient is φ = 35806627621352.

The previous prime is 71613304457659. The next prime is 71613304457711. The reversal of 71613304457668 is 86675440331617.

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, 1436043 + ... + 12053581.

It is an arithmetic number, because the mean of its divisors is an integer number (10443614077260).

Almost surely, 2^{71613304457668} is an apocalyptic number.

It is an amenable number.

71613304457668 is a deficient number, since it is larger than the sum of its proper divisors (53710064469452).

71613304457668 is a wasteful number, since it uses less digits than its factorization.

71613304457668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12303746 (or 12303744 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 61.

The spelling of 71613304457668 in words is "seventy-one trillion, six hundred thirteen billion, three hundred four million, four hundred fifty-seven thousand, six hundred sixty-eight".