6696543031 has 2 divisors, whose sum is σ = 6696543032. Its totient is φ = 6696543030.

The previous prime is 6696542987. The next prime is 6696543047. The reversal of 6696543031 is 1303456966.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6696543031 - 2¹³ = 6696534839 is a prime.

It is a super-2 number, since 2×6696543031² = 89687377132069333922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6696543071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3348271515 + 3348271516.

It is an arithmetic number, because the mean of its divisors is an integer number (3348271516).

Almost surely, 2^6696543031 is an apocalyptic number.

6696543031 is a deficient number, since it is larger than the sum of its proper divisors (1).

6696543031 is an equidigital number, since it uses as much as digits as its factorization.

6696543031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 43.

The square root of 6696543031 is about 81832.4081950421. The cubic root of 6696543031 is about 1884.8793418818.

Adding to 6696543031 its reverse (1303456966), we get a palindrome (7999999997).

The spelling of 6696543031 in words is "six billion, six hundred ninety-six million, five hundred forty-three thousand, thirty-one".