20084185243620 has 144 divisors (see below), whose sum is σ = 62844942957888. Its totient is φ = 5189356212480.

The previous prime is 20084185243609. The next prime is 20084185243627. The reversal of 20084185243620 is 2634258148002.

20084185243620 is a `hidden beast` number, since 2 + 0 + 0 + 8 + 4 + 18 + 5 + 2 + 4 + 3 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (20084185243627) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12914794 + ... + 14386113.

Almost surely, 2^{20084185243620} is an apocalyptic number.

20084185243620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20084185243620 is an abundant number, since it is smaller than the sum of its proper divisors (42760757714268).

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

20084185243620 is a wasteful number, since it uses less digits than its factorization.

20084185243620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27301050 (or 27301045 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 20084185243620 in words is "twenty trillion, eighty-four billion, one hundred eighty-five million, two hundred forty-three thousand, six hundred twenty".