66677033 has 2 divisors, whose sum is σ = 66677034. Its totient is φ = 66677032.

The previous prime is 66677011. The next prime is 66677041. The reversal of 66677033 is 33077666.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61889689 + 4787344 = 7867^2 + 2188^2 .

It is a cyclic number.

It is not a de Polignac number, because 66677033 - 2⁶ = 66676969 is a prime.

It is not a weakly prime, because it can be changed into another prime (66677333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33338516 + 33338517.

It is an arithmetic number, because the mean of its divisors is an integer number (33338517).

Almost surely, 2^66677033 is an apocalyptic number.

It is an amenable number.

66677033 is a deficient number, since it is larger than the sum of its proper divisors (1).

66677033 is an equidigital number, since it uses as much as digits as its factorization.

66677033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 38.

The square root of 66677033 is about 8165.6005902812. The cubic root of 66677033 is about 405.5011486601.

The spelling of 66677033 in words is "sixty-six million, six hundred seventy-seven thousand, thirty-three".