20000435403144 has 64 divisors (see below), whose sum is σ = 57494678538240. Its totient is φ = 5679352376640.

The previous prime is 20000435403139. The next prime is 20000435403161. The reversal of 20000435403144 is 44130453400002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365157312 + ... + 365212079.

It is an arithmetic number, because the mean of its divisors is an integer number (898354352160).

Almost surely, 2^{20000435403144} is an apocalyptic number.

20000435403144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20000435403144 is an abundant number, since it is smaller than the sum of its proper divisors (37494243135096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20000435403144 is a wasteful number, since it uses less digits than its factorization.

20000435403144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730369570 (or 730369566 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 20000435403144 its reverse (44130453400002), we get a palindrome (64130888803146).

The spelling of 20000435403144 in words is "twenty trillion, four hundred thirty-five million, four hundred three thousand, one hundred forty-four".