71245016464 has 40 divisors (see below), whose sum is σ = 141300251840. Its totient is φ = 34781056128.

The previous prime is 71245016449. The next prime is 71245016497. The reversal of 71245016464 is 46461054217.

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, 1968322 + ... + 2004190.

It is an arithmetic number, because the mean of its divisors is an integer number (3532506296).

Almost surely, 2^71245016464 is an apocalyptic number.

It is an amenable number.

71245016464 is a deficient number, since it is larger than the sum of its proper divisors (70055235376).

71245016464 is a wasteful number, since it uses less digits than its factorization.

71245016464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38807 (or 38801 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 71245016464 in words is "seventy-one billion, two hundred forty-five million, sixteen thousand, four hundred sixty-four".