266603461 has 2 divisors, whose sum is σ = 266603462. Its totient is φ = 266603460.

The previous prime is 266603437. The next prime is 266603521. The reversal of 266603461 is 164306662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215208900 + 51394561 = 14670^2 + 7169^2 .

It is a cyclic number.

It is not a de Polignac number, because 266603461 - 2⁵ = 266603429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266603261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133301730 + 133301731.

It is an arithmetic number, because the mean of its divisors is an integer number (133301731).

Almost surely, 2^266603461 is an apocalyptic number.

It is an amenable number.

266603461 is a deficient number, since it is larger than the sum of its proper divisors (1).

266603461 is an equidigital number, since it uses as much as digits as its factorization.

266603461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 266603461 is about 16327.9962334636. The cubic root of 266603461 is about 643.6087320519.

The spelling of 266603461 in words is "two hundred sixty-six million, six hundred three thousand, four hundred sixty-one".