681113666311186 has 8 divisors (see below), whose sum is σ = 1021670620516224. Its totient is φ = 340556792805780.

The previous prime is 681113666311181. The next prime is 681113666311189.

681113666311186 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 681113666311186.

It is not an unprimeable number, because it can be changed into a prime (681113666311181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9880071 + ... + 38207893.

It is an arithmetic number, because the mean of its divisors is an integer number (127708827564528).

Almost surely, 2^{681113666311186} is an apocalyptic number.

681113666311186 is a deficient number, since it is larger than the sum of its proper divisors (340556954205038).

681113666311186 is a wasteful number, since it uses less digits than its factorization.

681113666311186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40349816.

The product of its digits is 4478976, while the sum is 58.

The spelling of 681113666311186 in words is "six hundred eighty-one trillion, one hundred thirteen billion, six hundred sixty-six million, three hundred eleven thousand, one hundred eighty-six".