718685716560 has 480 divisors, whose sum is σ = 2641170240000. Its totient is φ = 161145492480.

The previous prime is 718685716549. The next prime is 718685716571. The reversal of 718685716560 is 65617586817.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (718685716549) and next prime (718685716571).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 718685716494 and 718685716503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 479442691 + ... + 479444189.

It is an arithmetic number, because the mean of its divisors is an integer number (5502438000).

Almost surely, 2^718685716560 is an apocalyptic number.

718685716560 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 718685716560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1320585120000).

718685716560 is an abundant number, since it is smaller than the sum of its proper divisors (1922484523440).

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

718685716560 is a wasteful number, since it uses less digits than its factorization.

718685716560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279 (or 2266 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 60.

The spelling of 718685716560 in words is "seven hundred eighteen billion, six hundred eighty-five million, seven hundred sixteen thousand, five hundred sixty".