2205161600663 has 32 divisors (see below), whose sum is σ = 2711100057600. Its totient is φ = 1751374047744.

The previous prime is 2205161600627. The next prime is 2205161600669. The reversal of 2205161600663 is 3660061615022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2205161600663 - 2²⁸ = 2204893165207 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 (2205161600669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9189281 + ... + 9426197.

It is an arithmetic number, because the mean of its divisors is an integer number (84721876800).

Almost surely, 2^{2205161600663} is an apocalyptic number.

2205161600663 is a deficient number, since it is larger than the sum of its proper divisors (505938456937).

2205161600663 is a wasteful number, since it uses less digits than its factorization.

2205161600663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238479.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 2205161600663 in words is "two trillion, two hundred five billion, one hundred sixty-one million, six hundred thousand, six hundred sixty-three".