20411644145112 has 384 divisors, whose sum is σ = 62316331084800. Its totient is φ = 5981423616000.

The previous prime is 20411644145077. The next prime is 20411644145143. The reversal of 20411644145112 is 21154144611402.

20411644145112 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 1 + 644 + 1 + 4 + 5 + 1 + 1 + 2 = 666.

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

It is a congruent number.

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, 4041106987 + ... + 4041112037.

It is an arithmetic number, because the mean of its divisors is an integer number (162282112200).

Almost surely, 2^{20411644145112} is an apocalyptic number.

20411644145112 is a gapful number since it is divisible by the number (22) 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 20411644145112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31158165542400).

20411644145112 is an abundant number, since it is smaller than the sum of its proper divisors (41904686939688).

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

20411644145112 is a wasteful number, since it uses less digits than its factorization.

20411644145112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5927 (or 5920 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

Adding to 20411644145112 its reverse (21154144611402), we get a palindrome (41565788756514).

The spelling of 20411644145112 in words is "twenty trillion, four hundred eleven billion, six hundred forty-four million, one hundred forty-five thousand, one hundred twelve".