10205663087 has 2 divisors, whose sum is σ = 10205663088. Its totient is φ = 10205663086.

The previous prime is 10205663033. The next prime is 10205663113. The reversal of 10205663087 is 78036650201.

10205663087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10205663087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10205663087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10205663687) 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 as a sum of consecutive naturals, namely, 5102831543 + 5102831544.

It is an arithmetic number, because the mean of its divisors is an integer number (5102831544).

Almost surely, 2^10205663087 is an apocalyptic number.

10205663087 is a deficient number, since it is larger than the sum of its proper divisors (1).

10205663087 is an equidigital number, since it uses as much as digits as its factorization.

10205663087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 10205663087 in words is "ten billion, two hundred five million, six hundred sixty-three thousand, eighty-seven".