2111550560020 has 96 divisors (see below), whose sum is σ = 4943714549760. Its totient is φ = 750979175040.

The previous prime is 2111550560017. The next prime is 2111550560087. The reversal of 2111550560020 is 200650551112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15016077 + ... + 15156043.

It is an arithmetic number, because the mean of its divisors is an integer number (51497026560).

Almost surely, 2^{2111550560020} is an apocalyptic number.

2111550560020 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 2111550560020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2471857274880).

2111550560020 is an abundant number, since it is smaller than the sum of its proper divisors (2832163989740).

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

2111550560020 is a wasteful number, since it uses less digits than its factorization.

2111550560020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141493 (or 141491 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 2111550560020 in words is "two trillion, one hundred eleven billion, five hundred fifty million, five hundred sixty thousand, twenty".