66841037 has 2 divisors, whose sum is σ = 66841038. Its totient is φ = 66841036.

The previous prime is 66841007. The next prime is 66841043. The reversal of 66841037 is 73014866.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60435076 + 6405961 = 7774^2 + 2531^2 .

It is a cyclic number.

It is not a de Polignac number, because 66841037 - 2⁶ = 66840973 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 66840988 and 66841006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66841007) 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, 33420518 + 33420519.

It is an arithmetic number, because the mean of its divisors is an integer number (33420519).

Almost surely, 2^66841037 is an apocalyptic number.

It is an amenable number.

66841037 is a deficient number, since it is larger than the sum of its proper divisors (1).

66841037 is an equidigital number, since it uses as much as digits as its factorization.

66841037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 66841037 is about 8175.6367947702. The cubic root of 66841037 is about 405.8333437994.

The spelling of 66841037 in words is "sixty-six million, eight hundred forty-one thousand, thirty-seven".