20004030804020 has 48 divisors (see below), whose sum is σ = 43840036695168. Its totient is φ = 7652822686080.

The previous prime is 20004030804011. The next prime is 20004030804049. The reversal of 20004030804020 is 2040803040002.

It is a super-2 number, since 2×20004030804020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1413347 + ... + 6481173.

It is an arithmetic number, because the mean of its divisors is an integer number (913334097816).

Almost surely, 2^{20004030804020} is an apocalyptic number.

20004030804020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20004030804020 is an abundant number, since it is smaller than the sum of its proper divisors (23836005891148).

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

20004030804020 is a wasteful number, since it uses less digits than its factorization.

20004030804020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5076440 (or 5076438 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20004030804020 its reverse (2040803040002), we get a palindrome (22044833844022).

The spelling of 20004030804020 in words is "twenty trillion, four billion, thirty million, eight hundred four thousand, twenty".