11583143578666 has 64 divisors (see below), whose sum is σ = 19557087897600. Its totient is φ = 5099831251200.

The previous prime is 11583143578637. The next prime is 11583143578703. The reversal of 11583143578666 is 66687534138511.

It is a junction number, because it is equal to n+sod(n) for n = 11583143578598 and 11583143578607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54382365 + ... + 54594943.

It is an arithmetic number, because the mean of its divisors is an integer number (305579498400).

Almost surely, 2^{11583143578666} is an apocalyptic number.

11583143578666 is a deficient number, since it is larger than the sum of its proper divisors (7973944318934).

11583143578666 is a wasteful number, since it uses less digits than its factorization.

11583143578666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213115.

The product of its digits is 87091200, while the sum is 64.

The spelling of 11583143578666 in words is "eleven trillion, five hundred eighty-three billion, one hundred forty-three million, five hundred seventy-eight thousand, six hundred sixty-six".