2045543223453 has 16 divisors (see below), whose sum is σ = 2811708344256. Its totient is φ = 1321960498560.

The previous prime is 2045543223413. The next prime is 2045543223457. The reversal of 2045543223453 is 3543223455402.

It is not a de Polignac number, because 2045543223453 - 2¹⁷ = 2045543092381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045543223457) 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 15 ways as a sum of consecutive naturals, for example, 52943851 + ... + 52982472.

It is an arithmetic number, because the mean of its divisors is an integer number (175731771516).

Almost surely, 2^{2045543223453} is an apocalyptic number.

It is an amenable number.

2045543223453 is a deficient number, since it is larger than the sum of its proper divisors (766165120803).

2045543223453 is a wasteful number, since it uses less digits than its factorization.

2045543223453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105926524.

The product of its (nonzero) digits is 1728000, while the sum is 42.

Adding to 2045543223453 its reverse (3543223455402), we get a palindrome (5588766678855).

The spelling of 2045543223453 in words is "two trillion, forty-five billion, five hundred forty-three million, two hundred twenty-three thousand, four hundred fifty-three".