716611640 has 32 divisors (see below), whose sum is σ = 1639710000. Its totient is φ = 281785344.

The previous prime is 716611639. The next prime is 716611681. The reversal of 716611640 is 46116617.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 716611597 and 716611606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149465 + ... + 154184.

Almost surely, 2^716611640 is an apocalyptic number.

It is an amenable number.

716611640 is an abundant number, since it is smaller than the sum of its proper divisors (923098360).

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

716611640 is a wasteful number, since it uses less digits than its factorization.

716611640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303719 (or 303715 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 716611640 is about 26769.6029107643. The cubic root of 716611640 is about 894.8727553358.

The spelling of 716611640 in words is "seven hundred sixteen million, six hundred eleven thousand, six hundred forty".