11275406566 has 16 divisors (see below), whose sum is σ = 17395955856. Its totient is φ = 5477206176.

The previous prime is 11275406561. The next prime is 11275406579. The reversal of 11275406566 is 66560457211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11275406561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62436 + ... + 162631.

It is an arithmetic number, because the mean of its divisors is an integer number (1087247241).

Almost surely, 2^11275406566 is an apocalyptic number.

11275406566 is a deficient number, since it is larger than the sum of its proper divisors (6120549290).

11275406566 is a wasteful number, since it uses less digits than its factorization.

11275406566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225783.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 11275406566 in words is "eleven billion, two hundred seventy-five million, four hundred six thousand, five hundred sixty-six".