20000020002002 has 8 divisors (see below), whose sum is σ = 31034513796300. Its totient is φ = 9655182069904.

The previous prime is 20000020001971. The next prime is 20000020002029. The reversal of 20000020002002 is 20020002000002.

It can be written as a sum of positive squares in 2 ways, for example, as 19698409247521 + 301610754481 = 4438289^2 + 549191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172413965477 + ... + 172413965592.

Almost surely, 2^{20000020002002} is an apocalyptic number.

20000020002002 is a deficient number, since it is larger than the sum of its proper divisors (11034493794298).

20000020002002 is a wasteful number, since it uses less digits than its factorization.

20000020002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344827931100.

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 20000020002002 its reverse (20020002000002), we get a palindrome (40020022002004).

The spelling of 20000020002002 in words is "twenty trillion, twenty million, two thousand, two".