71117156671 has 8 divisors (see below), whose sum is σ = 79233041664. Its totient is φ = 63276386520.

The previous prime is 71117156587. The next prime is 71117156687. The reversal of 71117156671 is 17665171117.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71117156671 - 2⁷ = 71117156543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71117196671) 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, 68778165 + ... + 68779198.

It is an arithmetic number, because the mean of its divisors is an integer number (9904130208).

Almost surely, 2^71117156671 is an apocalyptic number.

71117156671 is a deficient number, since it is larger than the sum of its proper divisors (8115884993).

71117156671 is a wasteful number, since it uses less digits than its factorization.

71117156671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137557421.

The product of its digits is 61740, while the sum is 43.

The spelling of 71117156671 in words is "seventy-one billion, one hundred seventeen million, one hundred fifty-six thousand, six hundred seventy-one".