66635341 has 2 divisors, whose sum is σ = 66635342. Its totient is φ = 66635340.

The previous prime is 66635339. The next prime is 66635357. The reversal of 66635341 is 14353666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65124900 + 1510441 = 8070^2 + 1229^2 .

It is a cyclic number.

It is not a de Polignac number, because 66635341 - 2¹ = 66635339 is a prime.

Together with 66635339, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 66635297 and 66635306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66635321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33317670 + 33317671.

It is an arithmetic number, because the mean of its divisors is an integer number (33317671).

Almost surely, 2^66635341 is an apocalyptic number.

It is an amenable number.

66635341 is a deficient number, since it is larger than the sum of its proper divisors (1).

66635341 is an equidigital number, since it uses as much as digits as its factorization.

66635341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 34.

The square root of 66635341 is about 8163.0472863999. The cubic root of 66635341 is about 405.4166134108.

The spelling of 66635341 in words is "sixty-six million, six hundred thirty-five thousand, three hundred forty-one".