66241849 has 2 divisors, whose sum is σ = 66241850. Its totient is φ = 66241848.

The previous prime is 66241831. The next prime is 66241867. The reversal of 66241849 is 94814266.

It is a balanced prime because it is at equal distance from previous prime (66241831) and next prime (66241867).

It can be written as a sum of positive squares in only one way, i.e., 65723449 + 518400 = 8107^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 66241849 - 2¹¹ = 66239801 is a prime.

It is not a weakly prime, because it can be changed into another prime (66242849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33120924 + 33120925.

It is an arithmetic number, because the mean of its divisors is an integer number (33120925).

Almost surely, 2^66241849 is an apocalyptic number.

It is an amenable number.

66241849 is a deficient number, since it is larger than the sum of its proper divisors (1).

66241849 is an equidigital number, since it uses as much as digits as its factorization.

66241849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The square root of 66241849 is about 8138.9095706980. The cubic root of 66241849 is about 404.6170214887.

The spelling of 66241849 in words is "sixty-six million, two hundred forty-one thousand, eight hundred forty-nine".