20000000002 has 16 divisors (see below), whose sum is σ = 30306669624. Its totient is φ = 9897840000.

The previous prime is 19999999967. The next prime is 20000000089.

20000000002 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 18460928641 + 1539071361 = 135871^2 + 39231^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19999999919 and 20000000000.

It is not an unprimeable number, because it can be changed into a prime (2) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701302 + ... + 729262.

Almost surely, 2^20000000002 is an apocalyptic number.

20000000002 is a deficient number, since it is larger than the sum of its proper divisors (10306669622).

20000000002 is a wasteful number, since it uses less digits than its factorization.

20000000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31605.

The product of its (nonzero) digits is 4, while the sum is 4.

It can be divided in two parts, 2000000000 and 2, that added together give a palindrome (2000000002).

The spelling of 20000000002 in words is "twenty billion, two", and thus it is an aban number and an uban number.