20444646200 has 96 divisors (see below), whose sum is σ = 53643330000. Its totient is φ = 7178035200.

The previous prime is 20444646197. The next prime is 20444646217. The reversal of 20444646200 is 264644402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96425 + ... + 224024.

Almost surely, 2^20444646200 is an apocalyptic number.

20444646200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20444646200 is an abundant number, since it is smaller than the sum of its proper divisors (33198683800).

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

20444646200 is a wasteful number, since it uses less digits than its factorization.

20444646200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320505 (or 320496 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The spelling of 20444646200 in words is "twenty billion, four hundred forty-four million, six hundred forty-six thousand, two hundred".