20647941096 has 64 divisors (see below), whose sum is σ = 53325043200. Its totient is φ = 6655622400.

The previous prime is 20647941089. The next prime is 20647941169. The reversal of 20647941096 is 69014974602.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1053466 + ... + 1072886.

It is an arithmetic number, because the mean of its divisors is an integer number (833203800).

Almost surely, 2^20647941096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20647941096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26662521600).

20647941096 is an abundant number, since it is smaller than the sum of its proper divisors (32677102104).

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

20647941096 is a wasteful number, since it uses less digits than its factorization.

20647941096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20890 (or 20886 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 20647941096 in words is "twenty billion, six hundred forty-seven million, nine hundred forty-one thousand, ninety-six".