66316753 has 2 divisors, whose sum is σ = 66316754. Its totient is φ = 66316752.

The previous prime is 66316697. The next prime is 66316759. The reversal of 66316753 is 35761366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46895104 + 19421649 = 6848^2 + 4407^2 .

It is a cyclic number.

It is not a de Polignac number, because 66316753 - 2¹⁷ = 66185681 is a prime.

It is not a weakly prime, because it can be changed into another prime (66316759) 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, 33158376 + 33158377.

It is an arithmetic number, because the mean of its divisors is an integer number (33158377).

Almost surely, 2^66316753 is an apocalyptic number.

It is an amenable number.

66316753 is a deficient number, since it is larger than the sum of its proper divisors (1).

66316753 is an equidigital number, since it uses as much as digits as its factorization.

66316753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 37.

The square root of 66316753 is about 8143.5098698289. The cubic root of 66316753 is about 404.7694730354.

The spelling of 66316753 in words is "sixty-six million, three hundred sixteen thousand, seven hundred fifty-three".