10663553205 has 56 divisors (see below), whose sum is σ = 19233958200. Its totient is φ = 5672903040.

The previous prime is 10663553189. The next prime is 10663553209. The reversal of 10663553205 is 50235536601.

10663553205 is a `hidden beast` number, since 10 + 6 + 635 + 5 + 3 + 2 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 324324081 + 10339229124 = 18009^2 + 101682^2 .

It is not a de Polignac number, because 10663553205 - 2⁴ = 10663553189 is a prime.

It is a super-2 number, since 2×10663553205² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10663553205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10663553209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1531071 + ... + 1538019.

Almost surely, 2^10663553205 is an apocalyptic number.

10663553205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10663553205 is a deficient number, since it is larger than the sum of its proper divisors (8570404995).

10663553205 is an frugal number, since it uses more digits than its factorization.

10663553205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7393 (or 7378 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 10663553205 in words is "ten billion, six hundred sixty-three million, five hundred fifty-three thousand, two hundred five".