66150907 has 2 divisors, whose sum is σ = 66150908. Its totient is φ = 66150906.

The previous prime is 66150881. The next prime is 66150911. The reversal of 66150907 is 70905166.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66150907 - 2¹⁹ = 65626619 is a prime.

It is not a weakly prime, because it can be changed into another prime (66150937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33075453 + 33075454.

It is an arithmetic number, because the mean of its divisors is an integer number (33075454).

Almost surely, 2^66150907 is an apocalyptic number.

66150907 is a deficient number, since it is larger than the sum of its proper divisors (1).

66150907 is an equidigital number, since it uses as much as digits as its factorization.

66150907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 66150907 is about 8133.3207855094. The cubic root of 66150907 is about 404.4317733729.

The spelling of 66150907 in words is "sixty-six million, one hundred fifty thousand, nine hundred seven".