66134417 has 2 divisors, whose sum is σ = 66134418. Its totient is φ = 66134416.

The previous prime is 66134401. The next prime is 66134449. The reversal of 66134417 is 71443166.

It is an a-pointer prime, because the next prime (66134449) can be obtained adding 66134417 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36529936 + 29604481 = 6044^2 + 5441^2 .

It is a cyclic number.

It is not a de Polignac number, because 66134417 - 2⁴ = 66134401 is a prime.

It is a super-2 number, since 2×66134417² = 8747522223859778, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66134477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33067208 + 33067209.

It is an arithmetic number, because the mean of its divisors is an integer number (33067209).

Almost surely, 2^66134417 is an apocalyptic number.

It is an amenable number.

66134417 is a deficient number, since it is larger than the sum of its proper divisors (1).

66134417 is an equidigital number, since it uses as much as digits as its factorization.

66134417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 66134417 is about 8132.3069912541. The cubic root of 66134417 is about 404.3981651959.

The spelling of 66134417 in words is "sixty-six million, one hundred thirty-four thousand, four hundred seventeen".