20107744400 has 30 divisors (see below), whose sum is σ = 48308856882. Its totient is φ = 8043097600.

The previous prime is 20107744373. The next prime is 20107744417. The reversal of 20107744400 is 444770102.

It can be written as a sum of positive squares in 3 ways, for example, as 90022144 + 20017722256 = 9488^2 + 141484^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25134281 + ... + 25135080.

Almost surely, 2^20107744400 is an apocalyptic number.

20107744400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20107744400 is an abundant number, since it is smaller than the sum of its proper divisors (28201112482).

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

20107744400 is a wasteful number, since it uses less digits than its factorization.

20107744400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50269379 (or 50269368 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 29.

The spelling of 20107744400 in words is "twenty billion, one hundred seven million, seven hundred forty-four thousand, four hundred".