20045213330 has 8 divisors (see below), whose sum is σ = 36081384012. Its totient is φ = 8018085328.

The previous prime is 20045213329. The next prime is 20045213333. The reversal of 20045213330 is 3331254002.

It can be written as a sum of positive squares in 2 ways, for example, as 18730933321 + 1314280009 = 136861^2 + 36253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20045213296 and 20045213305.

It is not an unprimeable number, because it can be changed into a prime (20045213333) 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 3 ways as a sum of consecutive naturals, for example, 1002260657 + ... + 1002260676.

Almost surely, 2^20045213330 is an apocalyptic number.

20045213330 is a deficient number, since it is larger than the sum of its proper divisors (16036170682).

20045213330 is a wasteful number, since it uses less digits than its factorization.

20045213330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004521340.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 20045213330 its reverse (3331254002), we get a palindrome (23376467332).

The spelling of 20045213330 in words is "twenty billion, forty-five million, two hundred thirteen thousand, three hundred thirty".