2665244543211 has 48 divisors (see below), whose sum is σ = 3964331433504. Its totient is φ = 1724228093952.

The previous prime is 2665244543197. The next prime is 2665244543219. The reversal of 2665244543211 is 1123454425662.

It is a happy number.

2665244543211 is a `hidden beast` number, since 2 + 6 + 6 + 52 + 44 + 543 + 2 + 11 = 666.

2665244543211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2665244543211 - 2¹⁵ = 2665244510443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2665244543219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 250087995 + ... + 250098651.

It is an arithmetic number, because the mean of its divisors is an integer number (82590238198).

Almost surely, 2^{2665244543211} is an apocalyptic number.

2665244543211 is a deficient number, since it is larger than the sum of its proper divisors (1299086890293).

2665244543211 is a wasteful number, since it uses less digits than its factorization.

2665244543211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12620 (or 12617 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

Adding to 2665244543211 its reverse (1123454425662), we get a palindrome (3788698968873).

The spelling of 2665244543211 in words is "two trillion, six hundred sixty-five billion, two hundred forty-four million, five hundred forty-three thousand, two hundred eleven".