20161327441716 has 144 divisors (see below), whose sum is σ = 55555136516880. Its totient is φ = 6139123384320.

The previous prime is 20161327441687. The next prime is 20161327441771. The reversal of 20161327441716 is 61714472316102.

20161327441716 is a `hidden beast` number, since 2 + 0 + 1 + 6 + 132 + 7 + 441 + 71 + 6 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 14042976780816 + 6118350660900 = 3747396^2 + 2473530^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8172936 + ... + 10349856.

It is an arithmetic number, because the mean of its divisors is an integer number (385799559145).

Almost surely, 2^{20161327441716} 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 20161327441716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27777568258440).

20161327441716 is an abundant number, since it is smaller than the sum of its proper divisors (35393809075164).

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

20161327441716 is a wasteful number, since it uses less digits than its factorization.

20161327441716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177394 (or 2177389 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

Adding to 20161327441716 its reverse (61714472316102), we get a palindrome (81875799757818).

The spelling of 20161327441716 in words is "twenty trillion, one hundred sixty-one billion, three hundred twenty-seven million, four hundred forty-one thousand, seven hundred sixteen".