11663222143 has 16 divisors (see below), whose sum is σ = 12487792000. Its totient is φ = 10860000480.

The previous prime is 11663222119. The next prime is 11663222149. The reversal of 11663222143 is 34122236611.

It is a cyclic number.

It is not a de Polignac number, because 11663222143 - 2⁵ = 11663222111 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 (11663222149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1966180 + ... + 1972102.

It is an arithmetic number, because the mean of its divisors is an integer number (780487000).

Almost surely, 2^11663222143 is an apocalyptic number.

11663222143 is a deficient number, since it is larger than the sum of its proper divisors (824569857).

11663222143 is a wasteful number, since it uses less digits than its factorization.

11663222143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7702.

The product of its digits is 10368, while the sum is 31.

Adding to 11663222143 its reverse (34122236611), we get a palindrome (45785458754).

The spelling of 11663222143 in words is "eleven billion, six hundred sixty-three million, two hundred twenty-two thousand, one hundred forty-three".