20044535772142 has 16 divisors (see below), whose sum is σ = 34430375572992. Its totient is φ = 8573436768600.

The previous prime is 20044535772077. The next prime is 20044535772161. The reversal of 20044535772142 is 24127753544002.

It is a junction number, because it is equal to n+sod(n) for n = 20044535772092 and 20044535772101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1423206234 + ... + 1423220317.

It is an arithmetic number, because the mean of its divisors is an integer number (2151898473312).

Almost surely, 2^{20044535772142} is an apocalyptic number.

20044535772142 is a deficient number, since it is larger than the sum of its proper divisors (14385839800850).

20044535772142 is a wasteful number, since it uses less digits than its factorization.

20044535772142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846427063.

The product of its (nonzero) digits is 1881600, while the sum is 46.

The spelling of 20044535772142 in words is "twenty trillion, forty-four billion, five hundred thirty-five million, seven hundred seventy-two thousand, one hundred forty-two".