13161642004251 has 12 divisors (see below), whose sum is σ = 20473665340128. Its totient is φ = 8099472002544.

The previous prime is 13161642004249. The next prime is 13161642004261. The reversal of 13161642004251 is 15240024616131.

13161642004251 is a `hidden beast` number, since 1 + 3 + 1 + 6 + 1 + 642 + 0 + 0 + 4 + 2 + 5 + 1 = 666.

It is not a de Polignac number, because 13161642004251 - 2¹ = 13161642004249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13161642004211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56246333235 + ... + 56246333468.

It is an arithmetic number, because the mean of its divisors is an integer number (1706138778344).

Almost surely, 2^{13161642004251} is an apocalyptic number.

13161642004251 is a deficient number, since it is larger than the sum of its proper divisors (7312023335877).

13161642004251 is a wasteful number, since it uses less digits than its factorization.

13161642004251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112492666722 (or 112492666719 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 13161642004251 in words is "thirteen trillion, one hundred sixty-one billion, six hundred forty-two million, four thousand, two hundred fifty-one".