20411060133161 has 8 divisors (see below), whose sum is σ = 20469782949000. Its totient is φ = 20352338680320.

The previous prime is 20411060133119. The next prime is 20411060133197. The reversal of 20411060133161 is 16133106011402.

It can be written as a sum of positive squares in 4 ways, for example, as 8606853857536 + 11804206275625 = 2933744^2 + 3435725^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20411060133161 is a prime.

It is a super-2 number, since 2×20411060133161² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20411060139161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34878191 + ... + 35458571.

It is an arithmetic number, because the mean of its divisors is an integer number (2558722868625).

Almost surely, 2^{20411060133161} is an apocalyptic number.

It is an amenable number.

20411060133161 is a deficient number, since it is larger than the sum of its proper divisors (58722815839).

20411060133161 is a wasteful number, since it uses less digits than its factorization.

20411060133161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681499.

The product of its (nonzero) digits is 2592, while the sum is 29.

Adding to 20411060133161 its reverse (16133106011402), we get a palindrome (36544166144563).

The spelling of 20411060133161 in words is "twenty trillion, four hundred eleven billion, sixty million, one hundred thirty-three thousand, one hundred sixty-one".