20744541135162 has 96 divisors (see below), whose sum is σ = 50587252724736. Its totient is φ = 6095890944000.

The previous prime is 20744541135113. The next prime is 20744541135163. The reversal of 20744541135162 is 26153114544702.

It is a happy number.

20744541135162 is a `hidden beast` number, since 2 + 0 + 7 + 4 + 45 + 411 + 35 + 162 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (20744541135163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 443287 + ... + 6456437.

It is an arithmetic number, because the mean of its divisors is an integer number (526950549216).

Almost surely, 2^{20744541135162} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20744541135162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25293626362368).

20744541135162 is an abundant number, since it is smaller than the sum of its proper divisors (29842711589574).

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

20744541135162 is a wasteful number, since it uses less digits than its factorization.

20744541135162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6013836 (or 6013833 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

Adding to 20744541135162 its reverse (26153114544702), we get a palindrome (46897655679864).

The spelling of 20744541135162 in words is "twenty trillion, seven hundred forty-four billion, five hundred forty-one million, one hundred thirty-five thousand, one hundred sixty-two".