66541048267 has 2 divisors, whose sum is σ = 66541048268. Its totient is φ = 66541048266.

The previous prime is 66541048229. The next prime is 66541048271. The reversal of 66541048267 is 76284014566.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66541048267 is a prime.

It is a super-2 number, since 2×66541048267² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66541048267.

It is not a weakly prime, because it can be changed into another prime (66541048207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33270524133 + 33270524134.

It is an arithmetic number, because the mean of its divisors is an integer number (33270524134).

Almost surely, 2^66541048267 is an apocalyptic number.

66541048267 is a deficient number, since it is larger than the sum of its proper divisors (1).

66541048267 is an equidigital number, since it uses as much as digits as its factorization.

66541048267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 66541048267 in words is "sixty-six billion, five hundred forty-one million, forty-eight thousand, two hundred sixty-seven".