66025325315113 has 2 divisors, whose sum is σ = 66025325315114. Its totient is φ = 66025325315112.

The previous prime is 66025325315111. The next prime is 66025325315141. The reversal of 66025325315113 is 31151352352066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38864102555664 + 27161222759449 = 6234108^2 + 5211643^2 .

It is a cyclic number.

It is not a de Polignac number, because 66025325315113 - 2¹ = 66025325315111 is a prime.

Together with 66025325315111, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66025325315113.

It is not a weakly prime, because it can be changed into another prime (66025325315111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33012662657556 + 33012662657557.

It is an arithmetic number, because the mean of its divisors is an integer number (33012662657557).

Almost surely, 2^{66025325315113} is an apocalyptic number.

It is an amenable number.

66025325315113 is a deficient number, since it is larger than the sum of its proper divisors (1).

66025325315113 is an equidigital number, since it uses as much as digits as its factorization.

66025325315113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486000, while the sum is 43.

Adding to 66025325315113 its reverse (31151352352066), we get a palindrome (97176677667179).

The spelling of 66025325315113 in words is "sixty-six trillion, twenty-five billion, three hundred twenty-five million, three hundred fifteen thousand, one hundred thirteen".