20433320020 has 48 divisors (see below), whose sum is σ = 43816299408. Its totient is φ = 8001377280.

The previous prime is 20433319997. The next prime is 20433320023. The reversal of 20433320020 is 2002333402.

It can be written as a sum of positive squares in 8 ways, for example, as 40908816 + 20392411204 = 6396^2 + 142802^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20433320020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20433320023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463330 + ... + 505510.

It is an arithmetic number, because the mean of its divisors is an integer number (912839571).

Almost surely, 2^20433320020 is an apocalyptic number.

20433320020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20433320020 is an abundant number, since it is smaller than the sum of its proper divisors (23382979388).

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

20433320020 is a wasteful number, since it uses less digits than its factorization.

20433320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42700 (or 42698 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 20433320020 its reverse (2002333402), we get a palindrome (22435653422).

It can be divided in two parts, 204333200 and 20, that added together give a triangular number (204333220 = T₂₀₂₁₅).

The spelling of 20433320020 in words is "twenty billion, four hundred thirty-three million, three hundred twenty thousand, twenty".