7071716428656 has 40 divisors (see below), whose sum is σ = 19929382664064. Its totient is φ = 2142944372160.

The previous prime is 7071716428613. The next prime is 7071716428669. The reversal of 7071716428656 is 6568246171707.

It is a super-2 number, since 2×7071716428656² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7071716428656.

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, 6696700636 + ... + 6696701691.

Almost surely, 2^{7071716428656} is an apocalyptic number.

It is an amenable number.

7071716428656 is an abundant number, since it is smaller than the sum of its proper divisors (12857666235408).

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

7071716428656 is a wasteful number, since it uses less digits than its factorization.

7071716428656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13393402349 (or 13393402343 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 60.

The spelling of 7071716428656 in words is "seven trillion, seventy-one billion, seven hundred sixteen million, four hundred twenty-eight thousand, six hundred fifty-six".