20104716880 has 20 divisors (see below), whose sum is σ = 46743466932. Its totient is φ = 8041886720.

The previous prime is 20104716869. The next prime is 20104716881. The reversal of 20104716880 is 8861740102.

It can be written as a sum of positive squares in 2 ways, for example, as 2788262416 + 17316454464 = 52804^2 + 131592^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20104716881) 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, 125654401 + ... + 125654560.

Almost surely, 2^20104716880 is an apocalyptic number.

20104716880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20104716880 is an abundant number, since it is smaller than the sum of its proper divisors (26638750052).

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

20104716880 is a wasteful number, since it uses less digits than its factorization.

20104716880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251308974 (or 251308968 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 20104716880 in words is "twenty billion, one hundred four million, seven hundred sixteen thousand, eight hundred eighty".