71296316064 has 72 divisors (see below), whose sum is σ = 202778110080. Its totient is φ = 23762014848.

The previous prime is 71296316041. The next prime is 71296316101. The reversal of 71296316064 is 46061369217.

71296316064 is a `hidden beast` number, since 7 + 1 + 2 + 9 + 6 + 31 + 606 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2705319 + ... + 2731545.

It is an arithmetic number, because the mean of its divisors is an integer number (2816362640).

Almost surely, 2^71296316064 is an apocalyptic number.

It is an amenable number.

71296316064 is an abundant number, since it is smaller than the sum of its proper divisors (131481794016).

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

71296316064 is a wasteful number, since it uses less digits than its factorization.

71296316064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35682 (or 35671 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 71296316064 in words is "seventy-one billion, two hundred ninety-six million, three hundred sixteen thousand, sixty-four".