20144103144 has 64 divisors (see below), whose sum is σ = 55094351040. Its totient is φ = 6086952960.

The previous prime is 20144103137. The next prime is 20144103157. The reversal of 20144103144 is 44130144102.

It is a super-2 number, since 2×20144103144² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14887 + ... + 201270.

It is an arithmetic number, because the mean of its divisors is an integer number (860849235).

Almost surely, 2^20144103144 is an apocalyptic number.

20144103144 is a gapful number since it is divisible by the number (24) 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 20144103144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27547175520).

20144103144 is an abundant number, since it is smaller than the sum of its proper divisors (34950247896).

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

20144103144 is a wasteful number, since it uses less digits than its factorization.

20144103144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216530 (or 216526 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 20144103144 its reverse (44130144102), we get a palindrome (64274247246).

The spelling of 20144103144 in words is "twenty billion, one hundred forty-four million, one hundred three thousand, one hundred forty-four".