20143341444420 has 288 divisors, whose sum is σ = 63131577320448. Its totient is φ = 5195910537216.

The previous prime is 20143341444409. The next prime is 20143341444433. The reversal of 20143341444420 is 2444414334102.

20143341444420 is a `hidden beast` number, since 2 + 0 + 1 + 43 + 34 + 144 + 442 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 609704142 + ... + 609737178.

It is an arithmetic number, because the mean of its divisors is an integer number (219206865696).

Almost surely, 2^{20143341444420} is an apocalyptic number.

20143341444420 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 20143341444420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31565788660224).

20143341444420 is an abundant number, since it is smaller than the sum of its proper divisors (42988235876028).

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

20143341444420 is a wasteful number, since it uses less digits than its factorization.

20143341444420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33939 (or 33934 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 20143341444420 its reverse (2444414334102), we get a palindrome (22587755778522).

The spelling of 20143341444420 in words is "twenty trillion, one hundred forty-three billion, three hundred forty-one million, four hundred forty-four thousand, four hundred twenty".