2143116782556 has 24 divisors (see below), whose sum is σ = 5000632170240. Its totient is φ = 714368497392.

The previous prime is 2143116782551. The next prime is 2143116782593. The reversal of 2143116782556 is 6552876113412.

It is a junction number, because it is equal to n+sod(n) for n = 2143116782499 and 2143116782508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143116782551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2826555 + ... + 3503661.

It is an arithmetic number, because the mean of its divisors is an integer number (208359673760).

Almost surely, 2^{2143116782556} is an apocalyptic number.

It is an amenable number.

2143116782556 is an abundant number, since it is smaller than the sum of its proper divisors (2857515387684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2143116782556 is a wasteful number, since it uses less digits than its factorization.

2143116782556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940873 (or 940871 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The spelling of 2143116782556 in words is "two trillion, one hundred forty-three billion, one hundred sixteen million, seven hundred eighty-two thousand, five hundred fifty-six".