2163756223 has 4 divisors (see below), whose sum is σ = 2196051160. Its totient is φ = 2131461288.

The previous prime is 2163756187. The next prime is 2163756227. The reversal of 2163756223 is 3226573612.

2163756223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2163756223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163756227) 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, 16147368 + ... + 16147501.

It is an arithmetic number, because the mean of its divisors is an integer number (549012790).

Almost surely, 2^2163756223 is an apocalyptic number.

2163756223 is a deficient number, since it is larger than the sum of its proper divisors (32294937).

2163756223 is an equidigital number, since it uses as much as digits as its factorization.

2163756223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32294936.

The product of its digits is 90720, while the sum is 37.

The square root of 2163756223 is about 46516.1931266951. The cubic root of 2163756223 is about 1293.4096890847.

The spelling of 2163756223 in words is "two billion, one hundred sixty-three million, seven hundred fifty-six thousand, two hundred twenty-three".