266632297 has 2 divisors, whose sum is σ = 266632298. Its totient is φ = 266632296.

The previous prime is 266632259. The next prime is 266632313. The reversal of 266632297 is 792236662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139145616 + 127486681 = 11796^2 + 11291^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266632297 is a prime.

It is not a weakly prime, because it can be changed into another prime (266630297) 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, 133316148 + 133316149.

It is an arithmetic number, because the mean of its divisors is an integer number (133316149).

Almost surely, 2^266632297 is an apocalyptic number.

It is an amenable number.

266632297 is a deficient number, since it is larger than the sum of its proper divisors (1).

266632297 is an equidigital number, since it uses as much as digits as its factorization.

266632297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 43.

The square root of 266632297 is about 16328.8792328194. The cubic root of 266632297 is about 643.6319355920.

The spelling of 266632297 in words is "two hundred sixty-six million, six hundred thirty-two thousand, two hundred ninety-seven".