2011555605112 has 32 divisors (see below), whose sum is σ = 3876002786880. Its totient is φ = 978111613440.

The previous prime is 2011555605067. The next prime is 2011555605139. The reversal of 2011555605112 is 2115065551102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9694128 + ... + 9899455.

It is an arithmetic number, because the mean of its divisors is an integer number (121125087090).

Almost surely, 2^{2011555605112} is an apocalyptic number.

It is an amenable number.

2011555605112 is a deficient number, since it is larger than the sum of its proper divisors (1864447181768).

2011555605112 is a wasteful number, since it uses less digits than its factorization.

2011555605112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19593943 (or 19593939 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 34.

The spelling of 2011555605112 in words is "two trillion, eleven billion, five hundred fifty-five million, six hundred five thousand, one hundred twelve".