2163320651 has 2 divisors, whose sum is σ = 2163320652. Its totient is φ = 2163320650.

The previous prime is 2163320573. The next prime is 2163320657. The reversal of 2163320651 is 1560233612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2163320651 - 2¹⁴ = 2163304267 is a prime.

It is not a weakly prime, because it can be changed into another prime (2163320657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081660325 + 1081660326.

It is an arithmetic number, because the mean of its divisors is an integer number (1081660326).

Almost surely, 2^2163320651 is an apocalyptic number.

2163320651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163320651 is an equidigital number, since it uses as much as digits as its factorization.

2163320651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 2163320651 is about 46511.5109515913. The cubic root of 2163320651 is about 1293.3228939017.

The spelling of 2163320651 in words is "two billion, one hundred sixty-three million, three hundred twenty thousand, six hundred fifty-one".