20608904000 has 56 divisors (see below), whose sum is σ = 51037970568. Its totient is φ = 8243558400.

The previous prime is 20608903967. The next prime is 20608904003. The reversal of 20608904000 is 40980602.

It can be written as a sum of positive squares in 4 ways, for example, as 3220789504 + 17388114496 = 56752^2 + 131864^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20608904003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280057 + ... + 1296056.

Almost surely, 2^20608904000 is an apocalyptic number.

20608904000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20608904000 is an abundant number, since it is smaller than the sum of its proper divisors (30429066568).

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

20608904000 is an equidigital number, since it uses as much as digits as its factorization.

20608904000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576140 (or 2576120 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 20608904000 in words is "twenty billion, six hundred eight million, nine hundred four thousand".