71133367136 has 72 divisors (see below), whose sum is σ = 154407012480. Its totient is φ = 32066931456.

The previous prime is 71133367099. The next prime is 71133367171. The reversal of 71133367136 is 63176333117.

It is a junction number, because it is equal to n+sod(n) for n = 71133367093 and 71133367102.

It is a congruent number.

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, 722945 + ... + 815423.

It is an arithmetic number, because the mean of its divisors is an integer number (2144541840).

Almost surely, 2^71133367136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71133367136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77203506240).

71133367136 is an abundant number, since it is smaller than the sum of its proper divisors (83273645344).

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

71133367136 is a wasteful number, since it uses less digits than its factorization.

71133367136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92588 (or 92537 counting only the distinct ones).

The product of its digits is 142884, while the sum is 41.

The spelling of 71133367136 in words is "seventy-one billion, one hundred thirty-three million, three hundred sixty-seven thousand, one hundred thirty-six".