66480233 has 2 divisors, whose sum is σ = 66480234. Its totient is φ = 66480232.

The previous prime is 66480223. The next prime is 66480257. The reversal of 66480233 is 33208466.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46076944 + 20403289 = 6788^2 + 4517^2 .

It is a cyclic number.

It is not a de Polignac number, because 66480233 - 2¹⁴ = 66463849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66480233.

It is not a weakly prime, because it can be changed into another prime (66480223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33240116 + 33240117.

It is an arithmetic number, because the mean of its divisors is an integer number (33240117).

Almost surely, 2^66480233 is an apocalyptic number.

It is an amenable number.

66480233 is a deficient number, since it is larger than the sum of its proper divisors (1).

66480233 is an equidigital number, since it uses as much as digits as its factorization.

66480233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 66480233 is about 8153.5411325387. The cubic root of 66480233 is about 405.1018044130.

Adding to 66480233 its reverse (33208466), we get a palindrome (99688699).

The spelling of 66480233 in words is "sixty-six million, four hundred eighty thousand, two hundred thirty-three".