66105103433 has 2 divisors, whose sum is σ = 66105103434. Its totient is φ = 66105103432.

The previous prime is 66105103423. The next prime is 66105103501. The reversal of 66105103433 is 33430150166.

66105103433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58210247824 + 7894855609 = 241268^2 + 88853^2 .

It is a cyclic number.

It is not a de Polignac number, because 66105103433 - 2⁴ = 66105103417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66105103433.

It is not a weakly prime, because it can be changed into another prime (66105103403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33052551716 + 33052551717.

It is an arithmetic number, because the mean of its divisors is an integer number (33052551717).

Almost surely, 2^66105103433 is an apocalyptic number.

It is an amenable number.

66105103433 is a deficient number, since it is larger than the sum of its proper divisors (1).

66105103433 is an equidigital number, since it uses as much as digits as its factorization.

66105103433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 32.

Adding to 66105103433 its reverse (33430150166), we get a palindrome (99535253599).

The spelling of 66105103433 in words is "sixty-six billion, one hundred five million, one hundred three thousand, four hundred thirty-three".