11220342066 has 24 divisors (see below), whose sum is σ = 24344209344. Its totient is φ = 3734965080.

The previous prime is 11220342037. The next prime is 11220342109. The reversal of 11220342066 is 66024302211.

11220342066 is a `hidden beast` number, since 11 + 220 + 3 + 420 + 6 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415630 + ... + 441801.

It is an arithmetic number, because the mean of its divisors is an integer number (1014342056).

Almost surely, 2^11220342066 is an apocalyptic number.

11220342066 is an abundant number, since it is smaller than the sum of its proper divisors (13123867278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11220342066 is a wasteful number, since it uses less digits than its factorization.

11220342066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858166 (or 858163 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 11220342066 its reverse (66024302211), we get a palindrome (77244644277).

The spelling of 11220342066 in words is "eleven billion, two hundred twenty million, three hundred forty-two thousand, sixty-six".