20450410543 has 8 divisors (see below), whose sum is σ = 21572853120. Its totient is φ = 19332578520.

The previous prime is 20450410447. The next prime is 20450410583. The reversal of 20450410543 is 34501405402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20450410543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20450410583) 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, 1143523 + ... + 1161268.

It is an arithmetic number, because the mean of its divisors is an integer number (2696606640).

Almost surely, 2^20450410543 is an apocalyptic number.

20450410543 is a deficient number, since it is larger than the sum of its proper divisors (1122442577).

20450410543 is a wasteful number, since it uses less digits than its factorization.

20450410543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305277.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 20450410543 its reverse (34501405402), we get a palindrome (54951815945).

The spelling of 20450410543 in words is "twenty billion, four hundred fifty million, four hundred ten thousand, five hundred forty-three".