11229559966 has 4 divisors (see below), whose sum is σ = 16844339952. Its totient is φ = 5614779982.

The previous prime is 11229559963. The next prime is 11229559993. The reversal of 11229559966 is 66995592211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66995592211 = 113 ⋅592881347.

It is a super-2 number, since 2×11229559966² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11229559963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2807389990 + ... + 2807389993.

It is an arithmetic number, because the mean of its divisors is an integer number (4211084988).

Almost surely, 2^11229559966 is an apocalyptic number.

11229559966 is a deficient number, since it is larger than the sum of its proper divisors (5614779986).

11229559966 is an equidigital number, since it uses as much as digits as its factorization.

11229559966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5614779985.

The product of its digits is 2624400, while the sum is 55.

The spelling of 11229559966 in words is "eleven billion, two hundred twenty-nine million, five hundred fifty-nine thousand, nine hundred sixty-six".