20143606042512 has 400 divisors, whose sum is σ = 60034477726080. Its totient is φ = 6518169667584.

The previous prime is 20143606042499. The next prime is 20143606042513. The reversal of 20143606042512 is 21524060634102.

20143606042512 is a `hidden beast` number, since 2 + 0 + 1 + 4 + 3 + 606 + 0 + 42 + 5 + 1 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (20143606042513) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2937666988 + ... + 2937673844.

Almost surely, 2^{20143606042512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20143606042512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30017238863040).

20143606042512 is an abundant number, since it is smaller than the sum of its proper divisors (39890871683568).

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

20143606042512 is a wasteful number, since it uses less digits than its factorization.

20143606042512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7412 (or 7397 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 20143606042512 its reverse (21524060634102), we get a palindrome (41667666676614).

The spelling of 20143606042512 in words is "twenty trillion, one hundred forty-three billion, six hundred six million, forty-two thousand, five hundred twelve".