66134017 has 2 divisors, whose sum is σ = 66134018. Its totient is φ = 66134016.

The previous prime is 66133999. The next prime is 66134023. The reversal of 66134017 is 71043166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34762816 + 31371201 = 5896^2 + 5601^2 .

It is a cyclic number.

It is not a de Polignac number, because 66134017 - 2¹⁹ = 65609729 is a prime.

It is not a weakly prime, because it can be changed into another prime (66134087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33067008 + 33067009.

It is an arithmetic number, because the mean of its divisors is an integer number (33067009).

It is a Proth number, since it is equal to 8073 ⋅ 2¹³ + 1 and 8073 < 2¹³.

Almost surely, 2^66134017 is an apocalyptic number.

It is an amenable number.

66134017 is a deficient number, since it is larger than the sum of its proper divisors (1).

66134017 is an equidigital number, since it uses as much as digits as its factorization.

66134017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 66134017 is about 8132.2823979495. The cubic root of 66134017 is about 404.3973498887.

The spelling of 66134017 in words is "sixty-six million, one hundred thirty-four thousand, seventeen".