2216654011873 has 12 divisors (see below), whose sum is σ = 2667472457940. Its totient is φ = 1834472284512.

The previous prime is 2216654011861. The next prime is 2216654011883. The reversal of 2216654011873 is 3781104566122.

It can be written as a sum of positive squares in 2 ways, for example, as 1877757717969 + 338896293904 = 1370313^2 + 582148^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2216654011873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216654011883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 779961286 + ... + 779964127.

It is an arithmetic number, because the mean of its divisors is an integer number (222289371495).

Almost surely, 2^{2216654011873} is an apocalyptic number.

It is an amenable number.

2216654011873 is a deficient number, since it is larger than the sum of its proper divisors (450818446067).

2216654011873 is a wasteful number, since it uses less digits than its factorization.

2216654011873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559925456 (or 1559925449 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

Adding to 2216654011873 its reverse (3781104566122), we get a palindrome (5997758577995).

The spelling of 2216654011873 in words is "two trillion, two hundred sixteen billion, six hundred fifty-four million, eleven thousand, eight hundred seventy-three".