71396164648 has 32 divisors (see below), whose sum is σ = 139313260800. Its totient is φ = 34260705472.

The previous prime is 71396164643. The next prime is 71396164657. The reversal of 71396164648 is 84646169317.

It is not an unprimeable number, because it can be changed into a prime (71396164643) 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, 882640 + ... + 960127.

It is an arithmetic number, because the mean of its divisors is an integer number (4353539400).

Almost surely, 2^71396164648 is an apocalyptic number.

It is an amenable number.

71396164648 is a deficient number, since it is larger than the sum of its proper divisors (67917096152).

71396164648 is a wasteful number, since it uses less digits than its factorization.

71396164648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842969 (or 1842965 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 55.

The spelling of 71396164648 in words is "seventy-one billion, three hundred ninety-six million, one hundred sixty-four thousand, six hundred forty-eight".