11166660263 has 4 divisors (see below), whose sum is σ = 12181811208. Its totient is φ = 10151509320.

The previous prime is 11166660251. The next prime is 11166660269. The reversal of 11166660263 is 36206666111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11166660263 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 (11166660269) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 507575456 + ... + 507575477.

It is an arithmetic number, because the mean of its divisors is an integer number (3045452802).

Almost surely, 2^11166660263 is an apocalyptic number.

11166660263 is a deficient number, since it is larger than the sum of its proper divisors (1015150945).

11166660263 is a wasteful number, since it uses less digits than its factorization.

11166660263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015150944.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 11166660263 in words is "eleven billion, one hundred sixty-six million, six hundred sixty thousand, two hundred sixty-three".