20045213334 has 12 divisors (see below), whose sum is σ = 43431295596. Its totient is φ = 6681737772.

The previous prime is 20045213333. The next prime is 20045213381. The reversal of 20045213334 is 43331254002.

20045213334 is a `hidden beast` number, since 200 + 452 + 1 + 3 + 3 + 3 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20045213298 and 20045213307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045213333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556811464 + ... + 556811499.

It is an arithmetic number, because the mean of its divisors is an integer number (3619274633).

Almost surely, 2^20045213334 is an apocalyptic number.

20045213334 is an abundant number, since it is smaller than the sum of its proper divisors (23386082262).

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

20045213334 is a wasteful number, since it uses less digits than its factorization.

20045213334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113622971 (or 1113622968 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 20045213334 its reverse (43331254002), we get a palindrome (63376467336).

The spelling of 20045213334 in words is "twenty billion, forty-five million, two hundred thirteen thousand, three hundred thirty-four".