20001444444141 has 16 divisors (see below), whose sum is σ = 26857264749504. Its totient is φ = 13240079259264.

The previous prime is 20001444444103. The next prime is 20001444444143. The reversal of 20001444444141 is 14144444410002.

It is not a de Polignac number, because 20001444444141 - 2²⁵ = 20001410889709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001444444143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14207320 + ... + 15551553.

It is an arithmetic number, because the mean of its divisors is an integer number (1678579046844).

Almost surely, 2^{20001444444141} is an apocalyptic number.

It is an amenable number.

20001444444141 is a deficient number, since it is larger than the sum of its proper divisors (6855820305363).

20001444444141 is a wasteful number, since it uses less digits than its factorization.

20001444444141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29760460.

The product of its (nonzero) digits is 32768, while the sum is 33.

Adding to 20001444444141 its reverse (14144444410002), we get a palindrome (34145888854143).

The spelling of 20001444444141 in words is "twenty trillion, one billion, four hundred forty-four million, four hundred forty-four thousand, one hundred forty-one".