20334858220 has 12 divisors (see below), whose sum is σ = 42703202304. Its totient is φ = 8133943280.

The previous prime is 20334858169. The next prime is 20334858221. The reversal of 20334858220 is 2285843302.

It is a self number, because there is not a number n which added to its sum of digits gives 20334858220.

It is not an unprimeable number, because it can be changed into a prime (20334858221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508371436 + ... + 508371475.

It is an arithmetic number, because the mean of its divisors is an integer number (3558600192).

Almost surely, 2^20334858220 is an apocalyptic number.

20334858220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20334858220 is an abundant number, since it is smaller than the sum of its proper divisors (22368344084).

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

20334858220 is a wasteful number, since it uses less digits than its factorization.

20334858220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016742920 (or 1016742918 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 20334858220 in words is "twenty billion, three hundred thirty-four million, eight hundred fifty-eight thousand, two hundred twenty".