6700681181 has 2 divisors, whose sum is σ = 6700681182. Its totient is φ = 6700681180.

The previous prime is 6700681147. The next prime is 6700681187. The reversal of 6700681181 is 1811860076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5408278681 + 1292402500 = 73541^2 + 35950^2 .

It is a cyclic number.

It is not a de Polignac number, because 6700681181 - 2¹⁴ = 6700664797 is a prime.

It is a super-2 number, since 2×6700681181² = 89798256578815109522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6700681187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3350340590 + 3350340591.

It is an arithmetic number, because the mean of its divisors is an integer number (3350340591).

Almost surely, 2^6700681181 is an apocalyptic number.

It is an amenable number.

6700681181 is a deficient number, since it is larger than the sum of its proper divisors (1).

6700681181 is an equidigital number, since it uses as much as digits as its factorization.

6700681181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 6700681181 is about 81857.6885881833. The cubic root of 6700681181 is about 1885.2675176567.

The spelling of 6700681181 in words is "six billion, seven hundred million, six hundred eighty-one thousand, one hundred eighty-one".