3605104021663 has 4 divisors (see below), whose sum is σ = 3605211950328. Its totient is φ = 3604996093000.

The previous prime is 3605104021661. The next prime is 3605104021711. The reversal of 3605104021663 is 3661204015063.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3605104021663 - 2¹ = 3605104021661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3605104021661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53914213 + ... + 53981038.

It is an arithmetic number, because the mean of its divisors is an integer number (901302987582).

Almost surely, 2^{3605104021663} is an apocalyptic number.

3605104021663 is a deficient number, since it is larger than the sum of its proper divisors (107928665).

3605104021663 is a wasteful number, since it uses less digits than its factorization.

3605104021663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107928664.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 3605104021663 in words is "three trillion, six hundred five billion, one hundred four million, twenty-one thousand, six hundred sixty-three".