66524251051289 has 2 divisors, whose sum is σ = 66524251051290. Its totient is φ = 66524251051288.

The previous prime is 66524251051231. The next prime is 66524251051301. The reversal of 66524251051289 is 98215015242566.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65927173398025 + 597077653264 = 8119555^2 + 772708^2 .

It is a cyclic number.

It is not a de Polignac number, because 66524251051289 - 2³² = 66519956083993 is a prime.

It is not a weakly prime, because it can be changed into another prime (66524251051229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33262125525644 + 33262125525645.

It is an arithmetic number, because the mean of its divisors is an integer number (33262125525645).

Almost surely, 2^{66524251051289} is an apocalyptic number.

It is an amenable number.

66524251051289 is a deficient number, since it is larger than the sum of its proper divisors (1).

66524251051289 is an equidigital number, since it uses as much as digits as its factorization.

66524251051289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368000, while the sum is 56.

The spelling of 66524251051289 in words is "sixty-six trillion, five hundred twenty-four billion, two hundred fifty-one million, fifty-one thousand, two hundred eighty-nine".