20018295304446 has 16 divisors (see below), whose sum is σ = 40036814807184. Its totient is φ = 6672727735104.

The previous prime is 20018295304409. The next prime is 20018295304457. The reversal of 20018295304446 is 64440359281002.

It is a junction number, because it is equal to n+sod(n) for n = 20018295304395 and 20018295304404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8169535 + ... + 10333338.

It is an arithmetic number, because the mean of its divisors is an integer number (2502300925449).

Almost surely, 2^{20018295304446} is an apocalyptic number.

20018295304446 is an abundant number, since it is smaller than the sum of its proper divisors (20018519502738).

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

20018295304446 is a wasteful number, since it uses less digits than its factorization.

20018295304446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18683195.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 20018295304446 in words is "twenty trillion, eighteen billion, two hundred ninety-five million, three hundred four thousand, four hundred forty-six".