2205045665544 has 16 divisors (see below), whose sum is σ = 5512614163920. Its totient is φ = 735015221840.

The previous prime is 2205045665531. The next prime is 2205045665549. The reversal of 2205045665544 is 4455665405022.

It is a junction number, because it is equal to n+sod(n) for n = 2205045665493 and 2205045665502.

It is not an unprimeable number, because it can be changed into a prime (2205045665549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45938451342 + ... + 45938451389.

It is an arithmetic number, because the mean of its divisors is an integer number (344538385245).

Almost surely, 2^{2205045665544} is an apocalyptic number.

2205045665544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2205045665544 is an abundant number, since it is smaller than the sum of its proper divisors (3307568498376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2205045665544 is a wasteful number, since it uses less digits than its factorization.

2205045665544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91876902740 (or 91876902736 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 48.

The spelling of 2205045665544 in words is "two trillion, two hundred five billion, forty-five million, six hundred sixty-five thousand, five hundred forty-four".