20403260204116 has 12 divisors (see below), whose sum is σ = 35752872740788. Its totient is φ = 10188153706752.

The previous prime is 20403260204057. The next prime is 20403260204153. The reversal of 20403260204116 is 61140206230402.

It can be written as a sum of positive squares in 2 ways, for example, as 9953583304900 + 10449676899216 = 3154930^2 + 3232596^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3369095421 + ... + 3369101476.

Almost surely, 2^{20403260204116} is an apocalyptic number.

It is an amenable number.

20403260204116 is a deficient number, since it is larger than the sum of its proper divisors (15349612536672).

20403260204116 is a wasteful number, since it uses less digits than its factorization.

20403260204116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6738197658 (or 6738197656 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 20403260204116 its reverse (61140206230402), we get a palindrome (81543466434518).

The spelling of 20403260204116 in words is "twenty trillion, four hundred three billion, two hundred sixty million, two hundred four thousand, one hundred sixteen".