6836066021 has 2 divisors, whose sum is σ = 6836066022. Its totient is φ = 6836066020.

The previous prime is 6836065991. The next prime is 6836066023. The reversal of 6836066021 is 1206606386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4364584225 + 2471481796 = 66065^2 + 49714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6836066021 is a prime.

It is a super-3 number, since 3×6836066021³ (a number of 30 digits) contains 333 as substring.

Together with 6836066023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6836066023) 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, 3418033010 + 3418033011.

It is an arithmetic number, because the mean of its divisors is an integer number (3418033011).

Almost surely, 2^6836066021 is an apocalyptic number.

It is an amenable number.

6836066021 is a deficient number, since it is larger than the sum of its proper divisors (1).

6836066021 is an equidigital number, since it uses as much as digits as its factorization.

6836066021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 6836066021 is about 82680.5056890680. The cubic root of 6836066021 is about 1897.8800011520.

The spelling of 6836066021 in words is "six billion, eight hundred thirty-six million, sixty-six thousand, twenty-one".