20010544000 has 128 divisors (see below), whose sum is σ = 49856433120. Its totient is φ = 7987302400.

The previous prime is 20010543967. The next prime is 20010544003. The reversal of 20010544000 is 44501002.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010544003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9870987 + ... + 9873013.

Almost surely, 2^20010544000 is an apocalyptic number.

20010544000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20010544000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24928216560).

20010544000 is an abundant number, since it is smaller than the sum of its proper divisors (29845889120).

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

20010544000 is an equidigital number, since it uses as much as digits as its factorization.

20010544000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673 (or 2651 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The spelling of 20010544000 in words is "twenty billion, ten million, five hundred forty-four thousand".