266340722 has 4 divisors (see below), whose sum is σ = 399511086. Its totient is φ = 133170360.

The previous prime is 266340707. The next prime is 266340733. The reversal of 266340722 is 227043662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 227043662 = 2 ⋅113521831.

It can be written as a sum of positive squares in only one way, i.e., 167159041 + 99181681 = 12929^2 + 9959^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66585179 + ... + 66585182.

Almost surely, 2^266340722 is an apocalyptic number.

266340722 is a deficient number, since it is larger than the sum of its proper divisors (133170364).

266340722 is a wasteful number, since it uses less digits than its factorization.

266340722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133170363.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 266340722 is about 16319.9485906053. The cubic root of 266340722 is about 643.3972360540.

The spelling of 266340722 in words is "two hundred sixty-six million, three hundred forty thousand, seven hundred twenty-two".