667652107663 has 2 divisors, whose sum is σ = 667652107664. Its totient is φ = 667652107662.

The previous prime is 667652107631. The next prime is 667652107693. The reversal of 667652107663 is 366701256766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 667652107663 - 2⁵ = 667652107631 is a prime.

It is a super-2 number, since 2×667652107663² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667652107693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333826053831 + 333826053832.

It is an arithmetic number, because the mean of its divisors is an integer number (333826053832).

Almost surely, 2^667652107663 is an apocalyptic number.

667652107663 is a deficient number, since it is larger than the sum of its proper divisors (1).

667652107663 is an equidigital number, since it uses as much as digits as its factorization.

667652107663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 55.

The spelling of 667652107663 in words is "six hundred sixty-seven billion, six hundred fifty-two million, one hundred seven thousand, six hundred sixty-three".