66196127 has 2 divisors, whose sum is σ = 66196128. Its totient is φ = 66196126.

The previous prime is 66196121. The next prime is 66196187. The reversal of 66196127 is 72169166.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66196127 - 2⁴ = 66196111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66196121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33098063 + 33098064.

It is an arithmetic number, because the mean of its divisors is an integer number (33098064).

Almost surely, 2^66196127 is an apocalyptic number.

66196127 is a deficient number, since it is larger than the sum of its proper divisors (1).

66196127 is an equidigital number, since it uses as much as digits as its factorization.

66196127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 38.

The square root of 66196127 is about 8136.1002329126. The cubic root of 66196127 is about 404.5239073534.

The spelling of 66196127 in words is "sixty-six million, one hundred ninety-six thousand, one hundred twenty-seven".