2123163659 has 2 divisors, whose sum is σ = 2123163660. Its totient is φ = 2123163658.

The previous prime is 2123163641. The next prime is 2123163661. The reversal of 2123163659 is 9563613212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123163659 - 2⁸ = 2123163403 is a prime.

Together with 2123163661, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2123163359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061581829 + 1061581830.

It is an arithmetic number, because the mean of its divisors is an integer number (1061581830).

Almost surely, 2^2123163659 is an apocalyptic number.

2123163659 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123163659 is an equidigital number, since it uses as much as digits as its factorization.

2123163659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 38.

The square root of 2123163659 is about 46077.8000668435. The cubic root of 2123163659 is about 1285.2703552838.

The spelling of 2123163659 in words is "two billion, one hundred twenty-three million, one hundred sixty-three thousand, six hundred fifty-nine".