20000020002 has 16 divisors (see below), whose sum is σ = 40001562720. Its totient is φ = 6666419552.

The previous prime is 20000019973. The next prime is 20000020009. The reversal of 20000020002 is 20002000002.

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

20000020002 is a modest number, since divided by 20002 gives 200 as remainder.

It is not an unprimeable number, because it can be changed into a prime (20000020009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177958 + ... + 267710.

It is an arithmetic number, because the mean of its divisors is an integer number (2500097670).

Almost surely, 2^20000020002 is an apocalyptic number.

20000020002 is an abundant number, since it is smaller than the sum of its proper divisors (20001542718).

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

20000020002 is a wasteful number, since it uses less digits than its factorization.

20000020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126897.

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

Adding to 20000020002 its reverse (20002000002), we get a palindrome (40002020004).

The spelling of 20000020002 in words is "twenty billion, twenty thousand, two".