71140531320 has 96 divisors (see below), whose sum is σ = 231276165120. Its totient is φ = 18965111040.

The previous prime is 71140531307. The next prime is 71140531327. The reversal of 71140531320 is 2313504117.

71140531320 is a `hidden beast` number, since 71 + 1 + 40 + 531 + 3 + 20 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71140531327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1246857 + ... + 1302663.

It is an arithmetic number, because the mean of its divisors is an integer number (2409126720).

Almost surely, 2^71140531320 is an apocalyptic number.

It is an amenable number.

71140531320 is an abundant number, since it is smaller than the sum of its proper divisors (160135633800).

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

71140531320 is a wasteful number, since it uses less digits than its factorization.

71140531320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59365 (or 59358 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The spelling of 71140531320 in words is "seventy-one billion, one hundred forty million, five hundred thirty-one thousand, three hundred twenty".