71106020080 has 20 divisors (see below), whose sum is σ = 165321496872. Its totient is φ = 28442408000.

The previous prime is 71106020077. The next prime is 71106020081. The reversal of 71106020080 is 8002060117.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71106020081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444412546 + ... + 444412705.

Almost surely, 2^71106020080 is an apocalyptic number.

It is an amenable number.

71106020080 is an abundant number, since it is smaller than the sum of its proper divisors (94215476792).

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

71106020080 is a wasteful number, since it uses less digits than its factorization.

71106020080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888825264 (or 888825258 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 71106020080 its reverse (8002060117), we get a palindrome (79108080197).

The spelling of 71106020080 in words is "seventy-one billion, one hundred six million, twenty thousand, eighty".