20304591044512 has 24 divisors (see below), whose sum is σ = 40013361325476. Its totient is φ = 10142467533312.

The previous prime is 20304591044489. The next prime is 20304591044527. The reversal of 20304591044512 is 21544019540302.

It can be written as a sum of positive squares in 2 ways, for example, as 16264153357456 + 4040437687056 = 4032884^2 + 2010084^2 .

It is a super-2 number, since 2×20304591044512² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307091083 + ... + 307157194.

Almost surely, 2^{20304591044512} is an apocalyptic number.

It is an amenable number.

20304591044512 is a deficient number, since it is larger than the sum of its proper divisors (19708770280964).

20304591044512 is a wasteful number, since it uses less digits than its factorization.

20304591044512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614249320 (or 614249312 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 20304591044512 in words is "twenty trillion, three hundred four billion, five hundred ninety-one million, forty-four thousand, five hundred twelve".