716513794561656 has 640 divisors, whose sum is σ = 2555456582448000. Its totient is φ = 182436611309568.

The previous prime is 716513794561567. The next prime is 716513794561703. The reversal of 716513794561656 is 656165497315617.

716513794561656 is a `hidden beast` number, since 7 + 1 + 6 + 5 + 1 + 3 + 7 + 9 + 4 + 561 + 6 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 34353625980 + ... + 34353646836.

It is an arithmetic number, because the mean of its divisors is an integer number (3992900910075).

Almost surely, 2^{716513794561656} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 716513794561656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1277728291224000).

716513794561656 is an abundant number, since it is smaller than the sum of its proper divisors (1838942787886344).

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

716513794561656 is a wasteful number, since it uses less digits than its factorization.

716513794561656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41013 (or 41000 counting only the distinct ones).

The product of its digits is 857304000, while the sum is 72.

The spelling of 716513794561656 in words is "seven hundred sixteen trillion, five hundred thirteen billion, seven hundred ninety-four million, five hundred sixty-one thousand, six hundred fifty-six".