71163093720 has 64 divisors (see below), whose sum is σ = 213537731040. Its totient is φ = 18972518400.

The previous prime is 71163093697. The next prime is 71163093721. The reversal of 71163093720 is 2739036117.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71163093721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 482310 + ... + 612330.

Almost surely, 2^71163093720 is an apocalyptic number.

It is an amenable number.

71163093720 is an abundant number, since it is smaller than the sum of its proper divisors (142374637320).

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

71163093720 is a wasteful number, since it uses less digits than its factorization.

71163093720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134596 (or 134592 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 39.

The spelling of 71163093720 in words is "seventy-one billion, one hundred sixty-three million, ninety-three thousand, seven hundred twenty".