11144040512666 has 4 divisors (see below), whose sum is σ = 16716060769002. Its totient is φ = 5572020256332.

The previous prime is 11144040512651. The next prime is 11144040512669. The reversal of 11144040512666 is 66621504044111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9428713325641 + 1715327187025 = 3070621^2 + 1309705^2 .

It is not an unprimeable number, because it can be changed into a prime (11144040512669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2786010128165 + ... + 2786010128168.

Almost surely, 2^{11144040512666} is an apocalyptic number.

11144040512666 is a deficient number, since it is larger than the sum of its proper divisors (5572020256336).

11144040512666 is an equidigital number, since it uses as much as digits as its factorization.

11144040512666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5572020256335.

The product of its (nonzero) digits is 138240, while the sum is 41.

Adding to 11144040512666 its reverse (66621504044111), we get a palindrome (77765544556777).

The spelling of 11144040512666 in words is "eleven trillion, one hundred forty-four billion, forty million, five hundred twelve thousand, six hundred sixty-six".