20002445000 has 40 divisors (see below), whose sum is σ = 46865740350. Its totient is φ = 8000976000.

The previous prime is 20002444999. The next prime is 20002445011. The reversal of 20002445000 is 54420002.

It can be written as a sum of positive squares in 5 ways, for example, as 2477451076 + 17524993924 = 49774^2 + 132382^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 20002445000.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1995245 + ... + 2005244.

Almost surely, 2^20002445000 is an apocalyptic number.

20002445000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002445000 is an abundant number, since it is smaller than the sum of its proper divisors (26863295350).

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

20002445000 is an equidigital number, since it uses as much as digits as its factorization.

20002445000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000515 (or 4000496 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

Adding to 20002445000 its reverse (54420002), we get a palindrome (20056865002).

The spelling of 20002445000 in words is "twenty billion, two million, four hundred forty-five thousand".