2112866642880 has 1344 divisors, whose sum is σ = 9175827947520. Its totient is φ = 435356467200.

The previous prime is 2112866642797. The next prime is 2112866642891. The reversal of 2112866642880 is 882466682112.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 724327182 + ... + 724330098.

Almost surely, 2^{2112866642880} is an apocalyptic number.

2112866642880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112866642880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4587913973760).

2112866642880 is an abundant number, since it is smaller than the sum of its proper divisors (7062961304640).

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

2112866642880 is a wasteful number, since it uses less digits than its factorization.

2112866642880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058 (or 3045 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 54.

The spelling of 2112866642880 in words is "two trillion, one hundred twelve billion, eight hundred sixty-six million, six hundred forty-two thousand, eight hundred eighty".