667210232617 has 2 divisors, whose sum is σ = 667210232618. Its totient is φ = 667210232616.

The previous prime is 667210232573. The next prime is 667210232621. The reversal of 667210232617 is 716232012766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 642993893161 + 24216339456 = 801869^2 + 155616^2 .

It is a cyclic number.

It is not a de Polignac number, because 667210232617 - 2¹¹ = 667210230569 is a prime.

It is not a weakly prime, because it can be changed into another prime (667210232917) 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, 333605116308 + 333605116309.

It is an arithmetic number, because the mean of its divisors is an integer number (333605116309).

Almost surely, 2^667210232617 is an apocalyptic number.

It is an amenable number.

667210232617 is a deficient number, since it is larger than the sum of its proper divisors (1).

667210232617 is an equidigital number, since it uses as much as digits as its factorization.

667210232617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 667210232617 in words is "six hundred sixty-seven billion, two hundred ten million, two hundred thirty-two thousand, six hundred seventeen".