2205620660321 has 16 divisors (see below), whose sum is σ = 2420543139840. Its totient is φ = 1997177856960.

The previous prime is 2205620660297. The next prime is 2205620660381. The reversal of 2205620660321 is 1230660265022.

It is a de Polignac number, because none of the positive numbers 2^k-2205620660321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2205620660381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3512576 + ... + 4092606.

It is an arithmetic number, because the mean of its divisors is an integer number (151283946240).

Almost surely, 2^{2205620660321} is an apocalyptic number.

It is an amenable number.

2205620660321 is a deficient number, since it is larger than the sum of its proper divisors (214922479519).

2205620660321 is a wasteful number, since it uses less digits than its factorization.

2205620660321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585616.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 2205620660321 in words is "two trillion, two hundred five billion, six hundred twenty million, six hundred sixty thousand, three hundred twenty-one".