2045243224520 has 16 divisors (see below), whose sum is σ = 4601797255260. Its totient is φ = 818097289792.

The previous prime is 2045243224483. The next prime is 2045243224523. The reversal of 2045243224520 is 254223425402.

It can be written as a sum of positive squares in 2 ways, for example, as 1907873662564 + 137369561956 = 1381258^2 + 370634^2 .

It is not an unprimeable number, because it can be changed into a prime (2045243224523) 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, 25565540267 + ... + 25565540346.

Almost surely, 2^{2045243224520} is an apocalyptic number.

2045243224520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045243224520 is an abundant number, since it is smaller than the sum of its proper divisors (2556554030740).

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

2045243224520 is a wasteful number, since it uses less digits than its factorization.

2045243224520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51131080624 (or 51131080620 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 2045243224520 its reverse (254223425402), we get a palindrome (2299466649922).

The spelling of 2045243224520 in words is "two trillion, forty-five billion, two hundred forty-three million, two hundred twenty-four thousand, five hundred twenty".