66057245140231 has 2 divisors, whose sum is σ = 66057245140232. Its totient is φ = 66057245140230.

The previous prime is 66057245140177. The next prime is 66057245140247. The reversal of 66057245140231 is 13204154275066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66057245140231 - 2⁴¹ = 63858221884679 is a prime.

It is a super-2 number, since 2×66057245140231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66057245140031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33028622570115 + 33028622570116.

It is an arithmetic number, because the mean of its divisors is an integer number (33028622570116).

Almost surely, 2^{66057245140231} is an apocalyptic number.

66057245140231 is a deficient number, since it is larger than the sum of its proper divisors (1).

66057245140231 is an equidigital number, since it uses as much as digits as its factorization.

66057245140231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 66057245140231 in words is "sixty-six trillion, fifty-seven billion, two hundred forty-five million, one hundred forty thousand, two hundred thirty-one".