66287341 has 2 divisors, whose sum is σ = 66287342. Its totient is φ = 66287340.

The previous prime is 66287329. The next prime is 66287489. The reversal of 66287341 is 14378266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64464841 + 1822500 = 8029^2 + 1350^2 .

It is a cyclic number.

It is not a de Polignac number, because 66287341 - 2⁷ = 66287213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66287341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66287141) 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, 33143670 + 33143671.

It is an arithmetic number, because the mean of its divisors is an integer number (33143671).

Almost surely, 2^66287341 is an apocalyptic number.

It is an amenable number.

66287341 is a deficient number, since it is larger than the sum of its proper divisors (1).

66287341 is an equidigital number, since it uses as much as digits as its factorization.

66287341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The square root of 66287341 is about 8141.7038143131. The cubic root of 66287341 is about 404.7096247083.

The spelling of 66287341 in words is "sixty-six million, two hundred eighty-seven thousand, three hundred forty-one".