266670461 has 2 divisors, whose sum is σ = 266670462. Its totient is φ = 266670460.

The previous prime is 266670431. The next prime is 266670479. The reversal of 266670461 is 164076662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 266505625 + 164836 = 16325^2 + 406^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266670461 is a prime.

It is a super-2 number, since 2×266670461² = 142226269539905042, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266670421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133335230 + 133335231.

It is an arithmetic number, because the mean of its divisors is an integer number (133335231).

Almost surely, 2^266670461 is an apocalyptic number.

It is an amenable number.

266670461 is a deficient number, since it is larger than the sum of its proper divisors (1).

266670461 is an equidigital number, since it uses as much as digits as its factorization.

266670461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 266670461 is about 16330.0477953985. The cubic root of 266670461 is about 643.6626425464.

The spelling of 266670461 in words is "two hundred sixty-six million, six hundred seventy thousand, four hundred sixty-one".