55103809161636 has 27 divisors (see below), whose sum is σ = 139290296854891. Its totient is φ = 18367921540824.

The previous prime is 55103809161619. The next prime is 55103809161641. The reversal of 55103809161636 is 63616190830155.

The square root of 55103809161636 is 7423194.

It is a perfect power (a square), and thus also a powerful number.

55103809161636 is a `hidden beast` number, since 5 + 5 + 10 + 3 + 8 + 0 + 9 + 1 + 616 + 3 + 6 = 666.

55103809161636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 43920565 + ... + 45157763.

Almost surely, 2^{55103809161636} is an apocalyptic number.

55103809161636 is the 7423194-th square number.

It is an amenable number.

55103809161636 is an abundant number, since it is smaller than the sum of its proper divisors (84186487693255).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55103809161636 is an frugal number, since it uses more digits than its factorization.

55103809161636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474408 (or 1237204 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 55103809161636 in words is "fifty-five trillion, one hundred three billion, eight hundred nine million, one hundred sixty-one thousand, six hundred thirty-six".