2116571052011 has 8 divisors (see below), whose sum is σ = 2286713423904. Its totient is φ = 1947475710720.

The previous prime is 2116571051971. The next prime is 2116571052041. The reversal of 2116571052011 is 1102501756112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2116571052011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2116571052041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261753446 + ... + 261761531.

It is an arithmetic number, because the mean of its divisors is an integer number (285839177988).

Almost surely, 2^{2116571052011} is an apocalyptic number.

2116571052011 is a deficient number, since it is larger than the sum of its proper divisors (170142371893).

2116571052011 is a wasteful number, since it uses less digits than its factorization.

2116571052011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523515301.

The product of its (nonzero) digits is 4200, while the sum is 32.

The spelling of 2116571052011 in words is "two trillion, one hundred sixteen billion, five hundred seventy-one million, fifty-two thousand, eleven".