667112269 has 2 divisors, whose sum is σ = 667112270. Its totient is φ = 667112268.

The previous prime is 667112239. The next prime is 667112323. The reversal of 667112269 is 962211766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 334524100 + 332588169 = 18290^2 + 18237^2 .

It is a cyclic number.

It is not a de Polignac number, because 667112269 - 2²⁷ = 532894541 is a prime.

It is a super-2 number, since 2×667112269² = 890077558900656722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667112239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333556134 + 333556135.

It is an arithmetic number, because the mean of its divisors is an integer number (333556135).

Almost surely, 2^667112269 is an apocalyptic number.

It is an amenable number.

667112269 is a deficient number, since it is larger than the sum of its proper divisors (1).

667112269 is an equidigital number, since it uses as much as digits as its factorization.

667112269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 667112269 is about 25828.5165853558. The cubic root of 667112269 is about 873.7750561343.

The spelling of 667112269 in words is "six hundred sixty-seven million, one hundred twelve thousand, two hundred sixty-nine".