20018295304404 has 96 divisors (see below), whose sum is σ = 50141390455296. Its totient is φ = 6193362124800.

The previous prime is 20018295304379. The next prime is 20018295304409. The reversal of 20018295304404 is 40440359281002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20018295304409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112151829 + ... + 112330179.

It is an arithmetic number, because the mean of its divisors is an integer number (522306150576).

Almost surely, 2^{20018295304404} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20018295304404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25070695227648).

20018295304404 is an abundant number, since it is smaller than the sum of its proper divisors (30123095150892).

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

20018295304404 is a wasteful number, since it uses less digits than its factorization.

20018295304404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185985 (or 185983 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 20018295304404 in words is "twenty trillion, eighteen billion, two hundred ninety-five million, three hundred four thousand, four hundred four".