2166635341131 has 8 divisors (see below), whose sum is σ = 2888894099520. Its totient is φ = 1444400071752.

The previous prime is 2166635341111. The next prime is 2166635341163. The reversal of 2166635341131 is 1311435366612.

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

It is not a de Polignac number, because 2166635341131 - 2⁵ = 2166635341099 is a prime.

It is a super-2 number, since 2×2166635341131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2166635341111) 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 7 ways as a sum of consecutive naturals, for example, 5655885 + ... + 6026798.

It is an arithmetic number, because the mean of its divisors is an integer number (361111762440).

Almost surely, 2^{2166635341131} is an apocalyptic number.

2166635341131 is a deficient number, since it is larger than the sum of its proper divisors (722258758389).

2166635341131 is a wasteful number, since it uses less digits than its factorization.

2166635341131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11744505.

The product of its digits is 233280, while the sum is 42.

The spelling of 2166635341131 in words is "two trillion, one hundred sixty-six billion, six hundred thirty-five million, three hundred forty-one thousand, one hundred thirty-one".