2116439646 has 8 divisors (see below), whose sum is σ = 4232879304. Its totient is φ = 705479880.

The previous prime is 2116439641. The next prime is 2116439693. The reversal of 2116439646 is 6469346112.

It is a happy number.

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

2116439646 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2116439598 and 2116439607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116439641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176369965 + ... + 176369976.

It is an arithmetic number, because the mean of its divisors is an integer number (529109913).

Almost surely, 2^2116439646 is an apocalyptic number.

2116439646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2116439646 is a wasteful number, since it uses less digits than its factorization.

2116439646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352739946.

The product of its digits is 186624, while the sum is 42.

The square root of 2116439646 is about 46004.7785126719. The cubic root of 2116439646 is about 1283.9121127042.

The spelling of 2116439646 in words is "two billion, one hundred sixteen million, four hundred thirty-nine thousand, six hundred forty-six".