66454067 has 2 divisors, whose sum is σ = 66454068. Its totient is φ = 66454066.

The previous prime is 66454027. The next prime is 66454081. The reversal of 66454067 is 76045466.

66454067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66454067 is a prime.

It is a super-2 number, since 2×66454067² = 8832286041680978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66454067.

It is not a weakly prime, because it can be changed into another prime (66454027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33227033 + 33227034.

It is an arithmetic number, because the mean of its divisors is an integer number (33227034).

Almost surely, 2^66454067 is an apocalyptic number.

66454067 is a deficient number, since it is larger than the sum of its proper divisors (1).

66454067 is an equidigital number, since it uses as much as digits as its factorization.

66454067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 66454067 is about 8151.9363957283. The cubic root of 66454067 is about 405.0486493406.

The spelling of 66454067 in words is "sixty-six million, four hundred fifty-four thousand, sixty-seven".