266805151 has 2 divisors, whose sum is σ = 266805152. Its totient is φ = 266805150.

The previous prime is 266805073. The next prime is 266805181. The reversal of 266805151 is 151508662.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266805151 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266805181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133402575 + 133402576.

It is an arithmetic number, because the mean of its divisors is an integer number (133402576).

Almost surely, 2^266805151 is an apocalyptic number.

266805151 is a deficient number, since it is larger than the sum of its proper divisors (1).

266805151 is an equidigital number, since it uses as much as digits as its factorization.

266805151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 266805151 is about 16334.1712676218. The cubic root of 266805151 is about 643.7709914166.

The spelling of 266805151 in words is "two hundred sixty-six million, eight hundred five thousand, one hundred fifty-one".