20013653450424 has 32 divisors (see below), whose sum is σ = 50037972264720. Its totient is φ = 6670705998336.

The previous prime is 20013653450423. The next prime is 20013653450447. The reversal of 20013653450424 is 42405435631002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013653450423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31669249 + ... + 32295024.

Almost surely, 2^{20013653450424} is an apocalyptic number.

20013653450424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20013653450424 is an abundant number, since it is smaller than the sum of its proper divisors (30024318814296).

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

20013653450424 is a wasteful number, since it uses less digits than its factorization.

20013653450424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63977319 (or 63977315 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 20013653450424 in words is "twenty trillion, thirteen billion, six hundred fifty-three million, four hundred fifty thousand, four hundred twenty-four".