20041545543 has 8 divisors (see below), whose sum is σ = 26724672000. Its totient is φ = 13359724728.

The previous prime is 20041545529. The next prime is 20041545571. The reversal of 20041545543 is 34554514002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20041545543 - 2¹⁸ = 20041283399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20041545523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290013 + ... + 352406.

It is an arithmetic number, because the mean of its divisors is an integer number (3340584000).

Almost surely, 2^20041545543 is an apocalyptic number.

20041545543 is a deficient number, since it is larger than the sum of its proper divisors (6683126457).

20041545543 is a wasteful number, since it uses less digits than its factorization.

20041545543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652821.

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 20041545543 in words is "twenty billion, forty-one million, five hundred forty-five thousand, five hundred forty-three".