71071517064 has 32 divisors (see below), whose sum is σ = 177700540320. Its totient is φ = 23687606016.

The previous prime is 71071517047. The next prime is 71071517089. The reversal of 71071517064 is 46071517017.

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, 23664 + ... + 377760.

It is an arithmetic number, because the mean of its divisors is an integer number (5553141885).

Almost surely, 2^71071517064 is an apocalyptic number.

It is an amenable number.

71071517064 is an abundant number, since it is smaller than the sum of its proper divisors (106629023256).

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

71071517064 is a wasteful number, since it uses less digits than its factorization.

71071517064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362469 (or 362465 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 39.

The spelling of 71071517064 in words is "seventy-one billion, seventy-one million, five hundred seventeen thousand, sixty-four".