20000020020 has 48 divisors (see below), whose sum is σ = 56021958720. Its totient is φ = 5331252736.

The previous prime is 20000020013. The next prime is 20000020043. The reversal of 20000020020 is 2002000002.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

20000020020 is a modest number, since divided by 20020 gives 20000 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 20000019990 and 20000020008.

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, 92659 + ... + 220421.

It is an arithmetic number, because the mean of its divisors is an integer number (1167124140).

Almost surely, 2^20000020020 is an apocalyptic number.

20000020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000020020 is an abundant number, since it is smaller than the sum of its proper divisors (36021938700).

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

20000020020 is a wasteful number, since it uses less digits than its factorization.

20000020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130384 (or 130382 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 6.

Adding to 20000020020 its reverse (2002000002), we get a palindrome (22002020022).

The spelling of 20000020020 in words is "twenty billion, twenty thousand, twenty".