681316696 has 16 divisors (see below), whose sum is σ = 1301572800. Its totient is φ = 334230624.

The previous prime is 681316693. The next prime is 681316717. The reversal of 681316696 is 696613186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681316693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803016 + ... + 803863.

It is an arithmetic number, because the mean of its divisors is an integer number (81348300).

Almost surely, 2^681316696 is an apocalyptic number.

It is an amenable number.

681316696 is a deficient number, since it is larger than the sum of its proper divisors (620256104).

681316696 is a wasteful number, since it uses less digits than its factorization.

681316696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606938 (or 1606934 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 681316696 is about 26102.0439046447. The cubic root of 681316696 is about 879.9331457476.

The spelling of 681316696 in words is "six hundred eighty-one million, three hundred sixteen thousand, six hundred ninety-six".