669159788319 has 12 divisors (see below), whose sum is σ = 1054433605992. Its totient is φ = 405551386800.

The previous prime is 669159788303. The next prime is 669159788333. The reversal of 669159788319 is 913887951966.

669159788319 is a `hidden beast` number, since 66 + 91 + 5 + 97 + 88 + 319 = 666.

669159788319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 669159788319 - 2⁴ = 669159788303 is a prime.

It is a super-3 number, since 3×669159788319³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669159788119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3379594792 + ... + 3379594989.

It is an arithmetic number, because the mean of its divisors is an integer number (87869467166).

Almost surely, 2^669159788319 is an apocalyptic number.

669159788319 is a deficient number, since it is larger than the sum of its proper divisors (385273817673).

669159788319 is a wasteful number, since it uses less digits than its factorization.

669159788319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6759189798 (or 6759189795 counting only the distinct ones).

The product of its digits is 176359680, while the sum is 72.

The spelling of 669159788319 in words is "six hundred sixty-nine billion, one hundred fifty-nine million, seven hundred eighty-eight thousand, three hundred nineteen".