66112633 has 2 divisors, whose sum is σ = 66112634. Its totient is φ = 66112632.

The previous prime is 66112621. The next prime is 66112639. The reversal of 66112633 is 33621166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44462224 + 21650409 = 6668^2 + 4653^2 .

It is a cyclic number.

It is not a de Polignac number, because 66112633 - 2⁵ = 66112601 is a prime.

It is not a weakly prime, because it can be changed into another prime (66112639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33056316 + 33056317.

It is an arithmetic number, because the mean of its divisors is an integer number (33056317).

Almost surely, 2^66112633 is an apocalyptic number.

It is an amenable number.

66112633 is a deficient number, since it is larger than the sum of its proper divisors (1).

66112633 is an equidigital number, since it uses as much as digits as its factorization.

66112633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 66112633 is about 8130.9675316041. The cubic root of 66112633 is about 404.3537587811.

Adding to 66112633 its reverse (33621166), we get a palindrome (99733799).

The spelling of 66112633 in words is "sixty-six million, one hundred twelve thousand, six hundred thirty-three".