11478000066 has 64 divisors (see below), whose sum is σ = 25820726400. Its totient is φ = 3377949696.

The previous prime is 11478000047. The next prime is 11478000119. The reversal of 11478000066 is 66000087411.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136570 + ... + 203978.

It is an arithmetic number, because the mean of its divisors is an integer number (403448850).

Almost surely, 2^11478000066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11478000066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12910363200).

11478000066 is an abundant number, since it is smaller than the sum of its proper divisors (14342726334).

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

11478000066 is a wasteful number, since it uses less digits than its factorization.

11478000066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67523.

The product of its (nonzero) digits is 8064, while the sum is 33.

Adding to 11478000066 its reverse (66000087411), we get a palindrome (77478087477).

The spelling of 11478000066 in words is "eleven billion, four hundred seventy-eight million, sixty-six", and thus it is an aban number.