20413424144 has 20 divisors (see below), whose sum is σ = 39693801324. Its totient is φ = 10169862528.

The previous prime is 20413424137. The next prime is 20413424149. The reversal of 20413424144 is 44142431402.

It can be written as a sum of positive squares in 2 ways, for example, as 8983248400 + 11430175744 = 94780^2 + 106912^2 .

It is not an unprimeable number, because it can be changed into a prime (20413424149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2298527 + ... + 2307390.

Almost surely, 2^20413424144 is an apocalyptic number.

It is an amenable number.

20413424144 is a deficient number, since it is larger than the sum of its proper divisors (19280377180).

20413424144 is a wasteful number, since it uses less digits than its factorization.

20413424144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4606202 (or 4606196 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 20413424144 its reverse (44142431402), we get a palindrome (64555855546).

The spelling of 20413424144 in words is "twenty billion, four hundred thirteen million, four hundred twenty-four thousand, one hundred forty-four".