11156664263 has 4 divisors (see below), whose sum is σ = 11160531600. Its totient is φ = 11152796928.

The previous prime is 11156664217. The next prime is 11156664289. The reversal of 11156664263 is 36246665111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36246665111 = 77723 ⋅466357.

It is a cyclic number.

It is not a de Polignac number, because 11156664263 - 2⁶ = 11156664199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11156664263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11156669263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1929338 + ... + 1935111.

It is an arithmetic number, because the mean of its divisors is an integer number (2790132900).

Almost surely, 2^11156664263 is an apocalyptic number.

11156664263 is a deficient number, since it is larger than the sum of its proper divisors (3867337).

11156664263 is an equidigital number, since it uses as much as digits as its factorization.

11156664263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3867336.

The product of its digits is 155520, while the sum is 41.

The spelling of 11156664263 in words is "eleven billion, one hundred fifty-six million, six hundred sixty-four thousand, two hundred sixty-three".