266304056 has 8 divisors (see below), whose sum is σ = 499320120. Its totient is φ = 133152024.

The previous prime is 266304047. The next prime is 266304083. The reversal of 266304056 is 650403662.

266304056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×266304056² = 141835700484102272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16643996 + ... + 16644011.

It is an arithmetic number, because the mean of its divisors is an integer number (62415015).

Almost surely, 2^266304056 is an apocalyptic number.

It is an amenable number.

266304056 is a deficient number, since it is larger than the sum of its proper divisors (233016064).

266304056 is a wasteful number, since it uses less digits than its factorization.

266304056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33288013 (or 33288009 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 266304056 is about 16318.8252028141. The cubic root of 266304056 is about 643.3677101076.

The spelling of 266304056 in words is "two hundred sixty-six million, three hundred four thousand, fifty-six".