681703016 has 16 divisors (see below), whose sum is σ = 1279095840. Its totient is φ = 340610800.

The previous prime is 681702991. The next prime is 681703031. The reversal of 681703016 is 610307186.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17756 + ... + 40971.

It is an arithmetic number, because the mean of its divisors is an integer number (79943490).

Almost surely, 2^681703016 is an apocalyptic number.

It is an amenable number.

681703016 is a deficient number, since it is larger than the sum of its proper divisors (597392824).

681703016 is a wasteful number, since it uses less digits than its factorization.

681703016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60184 (or 60180 counting only the distinct ones).

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

The square root of 681703016 is about 26109.4430427001. The cubic root of 681703016 is about 880.0994274709.

The spelling of 681703016 in words is "six hundred eighty-one million, seven hundred three thousand, sixteen".