660253339 has 2 divisors, whose sum is σ = 660253340. Its totient is φ = 660253338.

The previous prime is 660253333. The next prime is 660253343. The reversal of 660253339 is 933352066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660253339 - 2¹⁵ = 660220571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 660253298 and 660253307.

It is not a weakly prime, because it can be changed into another prime (660253333) 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, 330126669 + 330126670.

It is an arithmetic number, because the mean of its divisors is an integer number (330126670).

Almost surely, 2^660253339 is an apocalyptic number.

660253339 is a deficient number, since it is larger than the sum of its proper divisors (1).

660253339 is an equidigital number, since it uses as much as digits as its factorization.

660253339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 37.

The square root of 660253339 is about 25695.3952878721. The cubic root of 660253339 is about 870.7701547769.

The spelling of 660253339 in words is "six hundred sixty million, two hundred fifty-three thousand, three hundred thirty-nine".