681106069964 has 12 divisors (see below), whose sum is σ = 1193091726288. Its totient is φ = 340222719600.

The previous prime is 681106069951. The next prime is 681106069979. The reversal of 681106069964 is 469960601186.

It is a super-2 number, since 2×681106069964² (a number of 24 digits) contains 22 as substring.

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, 82574207 + ... + 82582454.

It is an arithmetic number, because the mean of its divisors is an integer number (99424310524).

Almost surely, 2^681106069964 is an apocalyptic number.

It is an amenable number.

681106069964 is a deficient number, since it is larger than the sum of its proper divisors (511985656324).

681106069964 is a wasteful number, since it uses less digits than its factorization.

681106069964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165157696 (or 165157694 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 56.

The spelling of 681106069964 in words is "six hundred eighty-one billion, one hundred six million, sixty-nine thousand, nine hundred sixty-four".