2112554443516 has 24 divisors (see below), whose sum is σ = 4033185050160. Its totient is φ = 960221884800.

The previous prime is 2112554443511. The next prime is 2112554443603. The reversal of 2112554443516 is 6153444552112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112554443511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695946 + ... + 2170126.

It is an arithmetic number, because the mean of its divisors is an integer number (168049377090).

Almost surely, 2^{2112554443516} is an apocalyptic number.

It is an amenable number.

2112554443516 is a deficient number, since it is larger than the sum of its proper divisors (1920630606644).

2112554443516 is a wasteful number, since it uses less digits than its factorization.

2112554443516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506765 (or 1506763 counting only the distinct ones).

The product of its digits is 576000, while the sum is 43.

Adding to 2112554443516 its reverse (6153444552112), we get a palindrome (8265998995628).

The spelling of 2112554443516 in words is "two trillion, one hundred twelve billion, five hundred fifty-four million, four hundred forty-three thousand, five hundred sixteen".