20004430663420 has 48 divisors (see below), whose sum is σ = 48010895589888. Its totient is φ = 6858624513600.

The previous prime is 20004430663409. The next prime is 20004430663423. The reversal of 20004430663420 is 2436603440002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004430663423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40973745 + ... + 41459095.

It is an arithmetic number, because the mean of its divisors is an integer number (1000226991456).

Almost surely, 2^{20004430663420} is an apocalyptic number.

20004430663420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20004430663420 is an abundant number, since it is smaller than the sum of its proper divisors (28006464926468).

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

20004430663420 is a wasteful number, since it uses less digits than its factorization.

20004430663420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779770 (or 779768 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

The spelling of 20004430663420 in words is "twenty trillion, four billion, four hundred thirty million, six hundred sixty-three thousand, four hundred twenty".