2116658238 has 48 divisors (see below), whose sum is σ = 4440378240. Its totient is φ = 672479280.

The previous prime is 2116658233. The next prime is 2116658249. The reversal of 2116658238 is 8328566112.

It is a self number, because there is not a number n which added to its sum of digits gives 2116658238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116658231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 383583 + ... + 389061.

It is an arithmetic number, because the mean of its divisors is an integer number (92507880).

Almost surely, 2^2116658238 is an apocalyptic number.

2116658238 is an abundant number, since it is smaller than the sum of its proper divisors (2323720002).

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

2116658238 is a wasteful number, since it uses less digits than its factorization.

2116658238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5613 (or 5582 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 2116658238 is about 46007.1542045365. The cubic root of 2116658238 is about 1283.9563132330.

The spelling of 2116658238 in words is "two billion, one hundred sixteen million, six hundred fifty-eight thousand, two hundred thirty-eight".