266473069 has 2 divisors, whose sum is σ = 266473070. Its totient is φ = 266473068.

The previous prime is 266473019. The next prime is 266473073. The reversal of 266473069 is 960374662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261468900 + 5004169 = 16170^2 + 2237^2 .

It is a cyclic number.

It is not a de Polignac number, because 266473069 - 2¹⁵ = 266440301 is a prime.

It is a super-2 number, since 2×266473069² = 142015793004557522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266473019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133236534 + 133236535.

It is an arithmetic number, because the mean of its divisors is an integer number (133236535).

Almost surely, 2^266473069 is an apocalyptic number.

It is an amenable number.

266473069 is a deficient number, since it is larger than the sum of its proper divisors (1).

266473069 is an equidigital number, since it uses as much as digits as its factorization.

266473069 is an evil number, because the sum of its binary digits is even.

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

The square root of 266473069 is about 16324.0028485663. The cubic root of 266473069 is about 643.5037882841.

The spelling of 266473069 in words is "two hundred sixty-six million, four hundred seventy-three thousand, sixty-nine".