669159788333 has 2 divisors, whose sum is σ = 669159788334. Its totient is φ = 669159788332.

The previous prime is 669159788303. The next prime is 669159788357. The reversal of 669159788333 is 333887951966.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438824103844 + 230335684489 = 662438^2 + 479933^2 .

It is a cyclic number.

It is not a de Polignac number, because 669159788333 - 2¹⁴ = 669159771949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (669159788303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334579894166 + 334579894167.

It is an arithmetic number, because the mean of its divisors is an integer number (334579894167).

Almost surely, 2^669159788333 is an apocalyptic number.

It is an amenable number.

669159788333 is a deficient number, since it is larger than the sum of its proper divisors (1).

669159788333 is an equidigital number, since it uses as much as digits as its factorization.

669159788333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 176359680, while the sum is 68.

The spelling of 669159788333 in words is "six hundred sixty-nine billion, one hundred fifty-nine million, seven hundred eighty-eight thousand, three hundred thirty-three".