266332061 has 2 divisors, whose sum is σ = 266332062. Its totient is φ = 266332060.

The previous prime is 266332037. The next prime is 266332069. The reversal of 266332061 is 160233662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263055961 + 3276100 = 16219^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 266332061 - 2¹⁸ = 266069917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266332069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133166030 + 133166031.

It is an arithmetic number, because the mean of its divisors is an integer number (133166031).

Almost surely, 2^266332061 is an apocalyptic number.

It is an amenable number.

266332061 is a deficient number, since it is larger than the sum of its proper divisors (1).

266332061 is an equidigital number, since it uses as much as digits as its factorization.

266332061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 266332061 is about 16319.6832383475. The cubic root of 266332061 is about 643.3902618747.

The spelling of 266332061 in words is "two hundred sixty-six million, three hundred thirty-two thousand, sixty-one".