2205025220617 has 4 divisors (see below), whose sum is σ = 2208058268416. Its totient is φ = 2201992172820.

The previous prime is 2205025220603. The next prime is 2205025220627. The reversal of 2205025220617 is 7160225205022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2205025220617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2205025220627) 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, 1516522809 + ... + 1516524262.

It is an arithmetic number, because the mean of its divisors is an integer number (552014567104).

Almost surely, 2^{2205025220617} is an apocalyptic number.

It is an amenable number.

2205025220617 is a deficient number, since it is larger than the sum of its proper divisors (3033047799).

2205025220617 is an equidigital number, since it uses as much as digits as its factorization.

2205025220617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033047798.

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 2205025220617 in words is "two trillion, two hundred five billion, twenty-five million, two hundred twenty thousand, six hundred seventeen".