2116571116 has 24 divisors (see below), whose sum is σ = 4126703616. Its totient is φ = 941607120.

The previous prime is 2116571053. The next prime is 2116571123. The reversal of 2116571116 is 6111756112.

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, 509676 + ... + 513811.

It is an arithmetic number, because the mean of its divisors is an integer number (171945984).

Almost surely, 2^2116571116 is an apocalyptic number.

It is an amenable number.

2116571116 is a deficient number, since it is larger than the sum of its proper divisors (2010132500).

2116571116 is a wasteful number, since it uses less digits than its factorization.

2116571116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023549 (or 1023547 counting only the distinct ones).

The product of its digits is 2520, while the sum is 31.

The square root of 2116571116 is about 46006.2073637895. The cubic root of 2116571116 is about 1283.9386970405.

The spelling of 2116571116 in words is "two billion, one hundred sixteen million, five hundred seventy-one thousand, one hundred sixteen".