66395341 has 2 divisors, whose sum is σ = 66395342. Its totient is φ = 66395340.

The previous prime is 66395339. The next prime is 66395347. The reversal of 66395341 is 14359366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66357316 + 38025 = 8146^2 + 195^2 .

It is a cyclic number.

It is not a de Polignac number, because 66395341 - 2¹ = 66395339 is a prime.

Together with 66395339, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66395341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66395347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33197670 + 33197671.

It is an arithmetic number, because the mean of its divisors is an integer number (33197671).

Almost surely, 2^66395341 is an apocalyptic number.

It is an amenable number.

66395341 is a deficient number, since it is larger than the sum of its proper divisors (1).

66395341 is an equidigital number, since it uses as much as digits as its factorization.

66395341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 37.

The square root of 66395341 is about 8148.3336333265. Note that the first 3 decimals coincide. The cubic root of 66395341 is about 404.9292992472.

The spelling of 66395341 in words is "sixty-six million, three hundred ninety-five thousand, three hundred forty-one".