667231535233 has 2 divisors, whose sum is σ = 667231535234. Its totient is φ = 667231535232.

The previous prime is 667231535209. The next prime is 667231535281. The reversal of 667231535233 is 332535132766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438524732944 + 228706802289 = 662212^2 + 478233^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667231535233 is a prime.

It is a super-2 number, since 2×667231535233² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (667231535293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333615767616 + 333615767617.

It is an arithmetic number, because the mean of its divisors is an integer number (333615767617).

Almost surely, 2^667231535233 is an apocalyptic number.

It is an amenable number.

667231535233 is a deficient number, since it is larger than the sum of its proper divisors (1).

667231535233 is an equidigital number, since it uses as much as digits as its factorization.

667231535233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 46.

Adding to 667231535233 its reverse (332535132766), we get a palindrome (999766667999).

The spelling of 667231535233 in words is "six hundred sixty-seven billion, two hundred thirty-one million, five hundred thirty-five thousand, two hundred thirty-three".