3653666663563 has 12 divisors (see below), whose sum is σ = 4310045415792. Its totient is φ = 3087605628240.

The previous prime is 3653666663551. The next prime is 3653666663573.

It is a happy number.

3653666663563 is nontrivially palindromic in base 10.

3653666663563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3653666663563 - 2¹⁷ = 3653666532491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3653666663495 and 3653666663504.

It is not an unprimeable number, because it can be changed into a prime (3653666663573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 525099520 + ... + 525106477.

It is an arithmetic number, because the mean of its divisors is an integer number (359170451316).

Almost surely, 2^{3653666663563} is an apocalyptic number.

3653666663563 is a deficient number, since it is larger than the sum of its proper divisors (656378752229).

3653666663563 is a wasteful number, since it uses less digits than its factorization.

3653666663563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050206082 (or 1050206075 counting only the distinct ones).

The product of its digits is 566870400, while the sum is 64.

The spelling of 3653666663563 in words is "three trillion, six hundred fifty-three billion, six hundred sixty-six million, six hundred sixty-three thousand, five hundred sixty-three".