667235011 has 2 divisors, whose sum is σ = 667235012. Its totient is φ = 667235010.

The previous prime is 667235003. The next prime is 667235017. The reversal of 667235011 is 110532766.

667235011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 667235011 - 2³ = 667235003 is a prime.

It is not a weakly prime, because it can be changed into another prime (667235017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333617505 + 333617506.

It is an arithmetic number, because the mean of its divisors is an integer number (333617506).

Almost surely, 2^667235011 is an apocalyptic number.

667235011 is a deficient number, since it is larger than the sum of its proper divisors (1).

667235011 is an equidigital number, since it uses as much as digits as its factorization.

667235011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 667235011 is about 25830.8925707185. The cubic root of 667235011 is about 873.8286414782.

Adding to 667235011 its reverse (110532766), we get a palindrome (777767777).

The spelling of 667235011 in words is "six hundred sixty-seven million, two hundred thirty-five thousand, eleven".