266562041 has 2 divisors, whose sum is σ = 266562042. Its totient is φ = 266562040.

The previous prime is 266562029. The next prime is 266562067. The reversal of 266562041 is 140265662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217267600 + 49294441 = 14740^2 + 7021^2 .

It is a cyclic number.

It is not a de Polignac number, because 266562041 - 2¹⁸ = 266299897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266561989 and 266562007.

It is not a weakly prime, because it can be changed into another prime (266562071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133281020 + 133281021.

It is an arithmetic number, because the mean of its divisors is an integer number (133281021).

Almost surely, 2^266562041 is an apocalyptic number.

It is an amenable number.

266562041 is a deficient number, since it is larger than the sum of its proper divisors (1).

266562041 is an equidigital number, since it uses as much as digits as its factorization.

266562041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 266562041 is about 16326.7278105565. The cubic root of 266562041 is about 643.5753995835.

The spelling of 266562041 in words is "two hundred sixty-six million, five hundred sixty-two thousand, forty-one".