66061002113 has 2 divisors, whose sum is σ = 66061002114. Its totient is φ = 66061002112.

The previous prime is 66061002071. The next prime is 66061002191. The reversal of 66061002113 is 31120016066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57550570609 + 8510431504 = 239897^2 + 92252^2 .

It is a cyclic number.

It is not a de Polignac number, because 66061002113 - 2²⁸ = 65792566657 is a prime.

It is not a weakly prime, because it can be changed into another prime (66061002193) 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, 33030501056 + 33030501057.

It is an arithmetic number, because the mean of its divisors is an integer number (33030501057).

Almost surely, 2^66061002113 is an apocalyptic number.

It is an amenable number.

66061002113 is a deficient number, since it is larger than the sum of its proper divisors (1).

66061002113 is an equidigital number, since it uses as much as digits as its factorization.

66061002113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 66061002113 its reverse (31120016066), we get a palindrome (97181018179).

The spelling of 66061002113 in words is "sixty-six billion, sixty-one million, two thousand, one hundred thirteen".