20080681936 has 20 divisors (see below), whose sum is σ = 44464367392. Its totient is φ = 8606006496.

The previous prime is 20080681763. The next prime is 20080681937. The reversal of 20080681936 is 63918608002.

It is a junction number, because it is equal to n+sod(n) for n = 20080681892 and 20080681901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20080681937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89645790 + ... + 89646013.

Almost surely, 2^20080681936 is an apocalyptic number.

It is an amenable number.

20080681936 is an abundant number, since it is smaller than the sum of its proper divisors (24383685456).

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

20080681936 is a wasteful number, since it uses less digits than its factorization.

20080681936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179291818 (or 179291812 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 20080681936 in words is "twenty billion, eighty million, six hundred eighty-one thousand, nine hundred thirty-six".