20544350043 has 16 divisors (see below), whose sum is σ = 33147187200. Its totient is φ = 11049062016.

The previous prime is 20544350041. The next prime is 20544350059. The reversal of 20544350043 is 34005344502.

It is not a de Polignac number, because 20544350043 - 2¹ = 20544350041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20544350041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28773243 + ... + 28773956.

It is an arithmetic number, because the mean of its divisors is an integer number (2071699200).

Almost surely, 2^20544350043 is an apocalyptic number.

20544350043 is a deficient number, since it is larger than the sum of its proper divisors (12602837157).

20544350043 is a wasteful number, since it uses less digits than its factorization.

20544350043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57547226.

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 20544350043 its reverse (34005344502), we get a palindrome (54549694545).

The spelling of 20544350043 in words is "twenty billion, five hundred forty-four million, three hundred fifty thousand, forty-three".