2181140233016 has 32 divisors (see below), whose sum is σ = 4331389302000. Its totient is φ = 1026138180096.

The previous prime is 2181140233009. The next prime is 2181140233021. The reversal of 2181140233016 is 6103320411812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1693931 + ... + 2689178.

Almost surely, 2^{2181140233016} is an apocalyptic number.

It is an amenable number.

2181140233016 is a deficient number, since it is larger than the sum of its proper divisors (2150249068984).

2181140233016 is a wasteful number, since it uses less digits than its factorization.

2181140233016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386791 (or 4386787 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

Adding to 2181140233016 its reverse (6103320411812), we get a palindrome (8284460644828).

The spelling of 2181140233016 in words is "two trillion, one hundred eighty-one billion, one hundred forty million, two hundred thirty-three thousand, sixteen".