266466506 has 8 divisors (see below), whose sum is σ = 401064804. Its totient is φ = 132778240.

The previous prime is 266466493. The next prime is 266466509. The reversal of 266466506 is 605664662.

It can be written as a sum of positive squares in 2 ways, for example, as 265983481 + 483025 = 16309^2 + 695^2 .

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

It is not an unprimeable number, because it can be changed into a prime (266466509) 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 3 ways as a sum of consecutive naturals, for example, 226775 + ... + 227946.

Almost surely, 2^266466506 is an apocalyptic number.

266466506 is a deficient number, since it is larger than the sum of its proper divisors (134598298).

266466506 is a wasteful number, since it uses less digits than its factorization.

266466506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455016.

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 266466506 is about 16323.8018243300. The cubic root of 266466506 is about 643.4985052612.

The spelling of 266466506 in words is "two hundred sixty-six million, four hundred sixty-six thousand, five hundred six".