71051060020 has 24 divisors (see below), whose sum is σ = 149544055584. Its totient is φ = 28356266016.

The previous prime is 71051059973. The next prime is 71051060071. The reversal of 71051060020 is 2006015017.

It is a junction number, because it is equal to n+sod(n) for n = 71051059973 and 71051060000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4000794 + ... + 4018513.

It is an arithmetic number, because the mean of its divisors is an integer number (6231002316).

Almost surely, 2^71051060020 is an apocalyptic number.

It is an amenable number.

71051060020 is an abundant number, since it is smaller than the sum of its proper divisors (78492995564).

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

71051060020 is a wasteful number, since it uses less digits than its factorization.

71051060020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8019759 (or 8019757 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

Adding to 71051060020 its reverse (2006015017), we get a palindrome (73057075037).

The spelling of 71051060020 in words is "seventy-one billion, fifty-one million, sixty thousand, twenty".