20544350042 has 8 divisors (see below), whose sum is σ = 30863289600. Its totient is φ = 10256586844.

The previous prime is 20544350041. The next prime is 20544350059. The reversal of 20544350042 is 24005344502.

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

It is a junction number, because it is equal to n+sod(n) for n = 20544349987 and 20544350014.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7792442 + ... + 7795077.

It is an arithmetic number, because the mean of its divisors is an integer number (3857911200).

Almost surely, 2^20544350042 is an apocalyptic number.

20544350042 is a deficient number, since it is larger than the sum of its proper divisors (10318939558).

20544350042 is a wasteful number, since it uses less digits than its factorization.

20544350042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15588180.

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 20544350042 its reverse (24005344502), we get a palindrome (44549694544).

The spelling of 20544350042 in words is "twenty billion, five hundred forty-four million, three hundred fifty thousand, forty-two".