2011112006500 has 48 divisors (see below), whose sum is σ = 4411449085680. Its totient is φ = 800931897600.

The previous prime is 2011112006429. The next prime is 2011112006513. The reversal of 2011112006500 is 56002111102.

It can be written as a sum of positive squares in 8 ways, for example, as 145270748736 + 1865841257764 = 381144^2 + 1365958^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8667649 + ... + 8896648.

It is an arithmetic number, because the mean of its divisors is an integer number (91905189285).

Almost surely, 2^{2011112006500} is an apocalyptic number.

2011112006500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011112006500 is an abundant number, since it is smaller than the sum of its proper divisors (2400337079180).

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

2011112006500 is a wasteful number, since it uses less digits than its factorization.

2011112006500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17564545 (or 17564533 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 2011112006500 its reverse (56002111102), we get a palindrome (2067114117602).

The spelling of 2011112006500 in words is "two trillion, eleven billion, one hundred twelve million, six thousand, five hundred".