20014303443440 has 160 divisors (see below), whose sum is σ = 49339148431680. Its totient is φ = 7529256419328.

The previous prime is 20014303443401. The next prime is 20014303443517. The reversal of 20014303443440 is 4434430341002.

It is a junction number, because it is equal to n+sod(n) for n = 20014303443397 and 20014303443406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176915534 + ... + 177028626.

It is an arithmetic number, because the mean of its divisors is an integer number (308369677698).

Almost surely, 2^{20014303443440} is an apocalyptic number.

20014303443440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20014303443440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24669574215840).

20014303443440 is an abundant number, since it is smaller than the sum of its proper divisors (29324844988240).

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

20014303443440 is a wasteful number, since it uses less digits than its factorization.

20014303443440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113971 (or 113965 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 20014303443440 its reverse (4434430341002), we get a palindrome (24448733784442).

The spelling of 20014303443440 in words is "twenty trillion, fourteen billion, three hundred three million, four hundred forty-three thousand, four hundred forty".