2158616223 has 40 divisors (see below), whose sum is σ = 3319829568. Its totient is φ = 1396771776.

The previous prime is 2158616219. The next prime is 2158616231. The reversal of 2158616223 is 3226168512.

2158616223 is a `hidden beast` number, since 2 + 15 + 8 + 616 + 2 + 23 = 666.

It is not a de Polignac number, because 2158616223 - 2² = 2158616219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158616233) 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 39 ways as a sum of consecutive naturals, for example, 1956490 + ... + 1957592.

Almost surely, 2^2158616223 is an apocalyptic number.

2158616223 is a deficient number, since it is larger than the sum of its proper divisors (1161213345).

2158616223 is a wasteful number, since it uses less digits than its factorization.

2158616223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805 (or 1796 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 2158616223 is about 46460.9106992104. The cubic root of 2158616223 is about 1292.3847127197.

The spelling of 2158616223 in words is "two billion, one hundred fifty-eight million, six hundred sixteen thousand, two hundred twenty-three".