71116744500 has 288 divisors, whose sum is σ = 233598927744. Its totient is φ = 18887904000.

The previous prime is 71116744499. The next prime is 71116744541. The reversal of 71116744500 is 544761117.

71116744500 is a `hidden beast` number, since 71 + 1 + 16 + 74 + 4 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 34140459 + ... + 34142541.

It is an arithmetic number, because the mean of its divisors is an integer number (811107388).

Almost surely, 2^71116744500 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 71116744500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116799463872).

71116744500 is an abundant number, since it is smaller than the sum of its proper divisors (162482183244).

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

71116744500 is a wasteful number, since it uses less digits than its factorization.

71116744500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398 (or 2374 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 71116744500 in words is "seventy-one billion, one hundred sixteen million, seven hundred forty-four thousand, five hundred".