667666733711 has 2 divisors, whose sum is σ = 667666733712. Its totient is φ = 667666733710.

The previous prime is 667666733653. The next prime is 667666733807. The reversal of 667666733711 is 117337666766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667666733711 - 2¹⁰ = 667666732687 is a prime.

It is a super-3 number, since 3×667666733711³ (a number of 36 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667666033711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333833366855 + 333833366856.

It is an arithmetic number, because the mean of its divisors is an integer number (333833366856).

Almost surely, 2^667666733711 is an apocalyptic number.

667666733711 is a deficient number, since it is larger than the sum of its proper divisors (1).

667666733711 is an equidigital number, since it uses as much as digits as its factorization.

667666733711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24004512, while the sum is 59.

The spelling of 667666733711 in words is "six hundred sixty-seven billion, six hundred sixty-six million, seven hundred thirty-three thousand, seven hundred eleven".