2105530663 has 2 divisors, whose sum is σ = 2105530664. Its totient is φ = 2105530662.

The previous prime is 2105530649. The next prime is 2105530697. The reversal of 2105530663 is 3660355012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2105530663 - 2¹⁷ = 2105399591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105531663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052765331 + 1052765332.

It is an arithmetic number, because the mean of its divisors is an integer number (1052765332).

Almost surely, 2^2105530663 is an apocalyptic number.

2105530663 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105530663 is an equidigital number, since it uses as much as digits as its factorization.

2105530663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 2105530663 is about 45886.0617508193. The cubic root of 2105530663 is about 1281.7023782134.

Adding to 2105530663 its reverse (3660355012), we get a palindrome (5765885675).

The spelling of 2105530663 in words is "two billion, one hundred five million, five hundred thirty thousand, six hundred sixty-three".