71086062656 has 56 divisors (see below), whose sum is σ = 161269436160. Its totient is φ = 30454797312.

The previous prime is 71086062643. The next prime is 71086062709. The reversal of 71086062656 is 65626068017.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 71086062656.

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, 1328060 + ... + 1380548.

It is an arithmetic number, because the mean of its divisors is an integer number (2879811360).

Almost surely, 2^71086062656 is an apocalyptic number.

It is an amenable number.

71086062656 is an abundant number, since it is smaller than the sum of its proper divisors (90183373504).

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

71086062656 is a wasteful number, since it uses less digits than its factorization.

71086062656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55531 (or 55521 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 71086062656 in words is "seventy-one billion, eighty-six million, sixty-two thousand, six hundred fifty-six".