66323003614261 has 2 divisors, whose sum is σ = 66323003614262. Its totient is φ = 66323003614260.

The previous prime is 66323003614237. The next prime is 66323003614279. The reversal of 66323003614261 is 16241630032366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46519302096036 + 19803701518225 = 6820506^2 + 4450135^2 .

It is a cyclic number.

It is not a de Polignac number, because 66323003614261 - 2²⁹ = 66322466743349 is a prime.

It is a super-2 number, since 2×66323003614261² (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 (66323003614061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33161501807130 + 33161501807131.

It is an arithmetic number, because the mean of its divisors is an integer number (33161501807131).

Almost surely, 2^{66323003614261} is an apocalyptic number.

It is an amenable number.

66323003614261 is a deficient number, since it is larger than the sum of its proper divisors (1).

66323003614261 is an equidigital number, since it uses as much as digits as its factorization.

66323003614261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 43.

The spelling of 66323003614261 in words is "sixty-six trillion, three hundred twenty-three billion, three million, six hundred fourteen thousand, two hundred sixty-one".