71571671020612 has 24 divisors (see below), whose sum is σ = 143970760213056. Its totient is φ = 30496269400608.

The previous prime is 71571671020561. The next prime is 71571671020637. The reversal of 71571671020612 is 21602017617517.

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, 7387657318 + ... + 7387667005.

It is an arithmetic number, because the mean of its divisors is an integer number (5998781675544).

Almost surely, 2^{71571671020612} is an apocalyptic number.

It is an amenable number.

71571671020612 is an abundant number, since it is smaller than the sum of its proper divisors (72399089192444).

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

71571671020612 is a wasteful number, since it uses less digits than its factorization.

71571671020612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14775324507 (or 14775324505 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 46.

The spelling of 71571671020612 in words is "seventy-one trillion, five hundred seventy-one billion, six hundred seventy-one million, twenty thousand, six hundred twelve".