669110711879 has 2 divisors, whose sum is σ = 669110711880. Its totient is φ = 669110711878.

The previous prime is 669110711861. The next prime is 669110711923. The reversal of 669110711879 is 978117011966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 669110711879 - 2³² = 664815744583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (669110711849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334555355939 + 334555355940.

It is an arithmetic number, because the mean of its divisors is an integer number (334555355940).

Almost surely, 2^669110711879 is an apocalyptic number.

669110711879 is a deficient number, since it is larger than the sum of its proper divisors (1).

669110711879 is an equidigital number, since it uses as much as digits as its factorization.

669110711879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 56.

The spelling of 669110711879 in words is "six hundred sixty-nine billion, one hundred ten million, seven hundred eleven thousand, eight hundred seventy-nine".