266004005 has 8 divisors (see below), whose sum is σ = 319842432. Its totient is φ = 212378128.

The previous prime is 266003999. The next prime is 266004007. The reversal of 266004005 is 500400662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 266004005 - 2¹⁶ = 265938469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266004007) 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 in 7 ways as a sum of consecutive naturals, for example, 50369 + ... + 55398.

It is an arithmetic number, because the mean of its divisors is an integer number (39980304).

Almost surely, 2^266004005 is an apocalyptic number.

It is an amenable number.

266004005 is a deficient number, since it is larger than the sum of its proper divisors (53838427).

266004005 is a wasteful number, since it uses less digits than its factorization.

266004005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106275.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 266004005 is about 16309.6292109907. The cubic root of 266004005 is about 643.1259868243.

Adding to 266004005 its reverse (500400662), we get a palindrome (766404667).

The spelling of 266004005 in words is "two hundred sixty-six million, four thousand, five".