66200723 has 2 divisors, whose sum is σ = 66200724. Its totient is φ = 66200722.

The previous prime is 66200683. The next prime is 66200749. The reversal of 66200723 is 32700266.

66200723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (66200749) can be obtained adding 66200723 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66200723 - 2⁸ = 66200467 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66200692 and 66200701.

It is not a weakly prime, because it can be changed into another prime (66200423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33100361 + 33100362.

It is an arithmetic number, because the mean of its divisors is an integer number (33100362).

Almost surely, 2^66200723 is an apocalyptic number.

66200723 is a deficient number, since it is larger than the sum of its proper divisors (1).

66200723 is an equidigital number, since it uses as much as digits as its factorization.

66200723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 66200723 is about 8136.3826729082. The cubic root of 66200723 is about 404.5332691742.

Adding to 66200723 its reverse (32700266), we get a palindrome (98900989).

The spelling of 66200723 in words is "sixty-six million, two hundred thousand, seven hundred twenty-three".