66252425287 has 2 divisors, whose sum is σ = 66252425288. Its totient is φ = 66252425286.

The previous prime is 66252425263. The next prime is 66252425303. The reversal of 66252425287 is 78252425266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66252425287 - 2⁷ = 66252425159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66252425287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66252425887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33126212643 + 33126212644.

It is an arithmetic number, because the mean of its divisors is an integer number (33126212644).

Almost surely, 2^66252425287 is an apocalyptic number.

66252425287 is a deficient number, since it is larger than the sum of its proper divisors (1).

66252425287 is an equidigital number, since it uses as much as digits as its factorization.

66252425287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3225600, while the sum is 49.

The spelling of 66252425287 in words is "sixty-six billion, two hundred fifty-two million, four hundred twenty-five thousand, two hundred eighty-seven".