71071927164 has 72 divisors (see below), whose sum is σ = 205416801408. Its totient is φ = 20296582560.

The previous prime is 71071927151. The next prime is 71071927177. The reversal of 71071927164 is 46172917017.

It is an interprime number because it is at equal distance from previous prime (71071927151) and next prime (71071927177).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 470839 + ... + 603185.

Almost surely, 2^71071927164 is an apocalyptic number.

It is an amenable number.

71071927164 is an abundant number, since it is smaller than the sum of its proper divisors (134344874244).

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

71071927164 is a wasteful number, since it uses less digits than its factorization.

71071927164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134495 (or 134490 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The spelling of 71071927164 in words is "seventy-one billion, seventy-one million, nine hundred twenty-seven thousand, one hundred sixty-four".