2011112161709 has 32 divisors (see below), whose sum is σ = 2500008960000. Its totient is φ = 1612411203312.

The previous prime is 2011112161687. The next prime is 2011112161717. The reversal of 2011112161709 is 9071612111102.

It is a de Polignac number, because none of the positive numbers 2^k-2011112161709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011112161789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1438289 + ... + 2467974.

It is an arithmetic number, because the mean of its divisors is an integer number (78125280000).

Almost surely, 2^{2011112161709} is an apocalyptic number.

It is an amenable number.

2011112161709 is a deficient number, since it is larger than the sum of its proper divisors (488896798291).

2011112161709 is an equidigital number, since it uses as much as digits as its factorization.

2011112161709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906382 (or 3906368 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 32.

The spelling of 2011112161709 in words is "two trillion, eleven billion, one hundred twelve million, one hundred sixty-one thousand, seven hundred nine".