20014043055440 has 80 divisors (see below), whose sum is σ = 56308416959232. Its totient is φ = 6458313050112.

The previous prime is 20014043055289. The next prime is 20014043055509. The reversal of 20014043055440 is 4455034041002.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 20014043055397 and 20014043055406.

It is a congruent number.

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, 1051148204 + ... + 1051167243.

Almost surely, 2^{20014043055440} is an apocalyptic number.

20014043055440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20014043055440 is an abundant number, since it is smaller than the sum of its proper divisors (36294373903792).

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

20014043055440 is a wasteful number, since it uses less digits than its factorization.

20014043055440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102315484 (or 2102315478 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 20014043055440 its reverse (4455034041002), we get a palindrome (24469077096442).

The spelling of 20014043055440 in words is "twenty trillion, fourteen billion, forty-three million, fifty-five thousand, four hundred forty".