20344041631161 has 24 divisors (see below), whose sum is σ = 30934234188000. Its totient is φ = 12848131827072.

The previous prime is 20344041631061. The next prime is 20344041631169. The reversal of 20344041631161 is 16113614044302.

20344041631161 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 4 + 0 + 4 + 1 + 631 + 16 + 1 = 666.

It is not a de Polignac number, because 20344041631161 - 2¹⁰ = 20344041630137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20344041631169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 410691 + ... + 6391928.

It is an arithmetic number, because the mean of its divisors is an integer number (1288926424500).

Almost surely, 2^{20344041631161} is an apocalyptic number.

It is an amenable number.

20344041631161 is a deficient number, since it is larger than the sum of its proper divisors (10590192556839).

20344041631161 is a wasteful number, since it uses less digits than its factorization.

20344041631161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6820133 (or 6820130 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 20344041631161 its reverse (16113614044302), we get a palindrome (36457655675463).

The spelling of 20344041631161 in words is "twenty trillion, three hundred forty-four billion, forty-one million, six hundred thirty-one thousand, one hundred sixty-one".