20603333420 has 24 divisors (see below), whose sum is σ = 44083360944. Its totient is φ = 8085836096.

The previous prime is 20603333383. The next prime is 20603333423. The reversal of 20603333420 is 2433330602.

It is a self number, because there is not a number n which added to its sum of digits gives 20603333420.

It is not an unprimeable number, because it can be changed into a prime (20603333423) 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 7 ways as a sum of consecutive naturals, for example, 9717494 + ... + 9719613.

It is an arithmetic number, because the mean of its divisors is an integer number (1836806706).

Almost surely, 2^20603333420 is an apocalyptic number.

20603333420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20603333420 is an abundant number, since it is smaller than the sum of its proper divisors (23480027524).

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

20603333420 is a wasteful number, since it uses less digits than its factorization.

20603333420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19437169 (or 19437167 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

The spelling of 20603333420 in words is "twenty billion, six hundred three million, three hundred thirty-three thousand, four hundred twenty".