20081103261696 has 104 divisors (see below), whose sum is σ = 59492302416960. Its totient is φ = 6693701050368.

The previous prime is 20081103261679. The next prime is 20081103261707. The reversal of 20081103261696 is 69616230118002.

20081103261696 is a `hidden beast` number, since 20 + 0 + 8 + 1 + 1 + 0 + 3 + 2 + 616 + 9 + 6 = 666.

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 7 ways as a sum of consecutive naturals, for example, 90678540 + ... + 90899723.

Almost surely, 2^{20081103261696} is an apocalyptic number.

It is an amenable number.

20081103261696 is an abundant number, since it is smaller than the sum of its proper divisors (39411199155264).

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

20081103261696 is an equidigital number, since it uses as much as digits as its factorization.

20081103261696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181578296 (or 181578268 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

Adding to 20081103261696 its reverse (69616230118002), we get a palindrome (89697333379698).

The spelling of 20081103261696 in words is "twenty trillion, eighty-one billion, one hundred three million, two hundred sixty-one thousand, six hundred ninety-six".