10805257805603 has 2 divisors, whose sum is σ = 10805257805604. Its totient is φ = 10805257805602.

The previous prime is 10805257805567. The next prime is 10805257805611. The reversal of 10805257805603 is 30650875250801.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10805257805603 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (10805257808603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5402628902801 + 5402628902802.

It is an arithmetic number, because the mean of its divisors is an integer number (5402628902802).

Almost surely, 2^{10805257805603} is an apocalyptic number.

10805257805603 is a deficient number, since it is larger than the sum of its proper divisors (1).

10805257805603 is an equidigital number, since it uses as much as digits as its factorization.

10805257805603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 10805257805603 in words is "ten trillion, eight hundred five billion, two hundred fifty-seven million, eight hundred five thousand, six hundred three".