887666422161 has 16 divisors (see below), whose sum is σ = 1189086575040. Its totient is φ = 589016693760.

The previous prime is 887666422129. The next prime is 887666422199. The reversal of 887666422161 is 161224666788.

It is not a de Polignac number, because 887666422161 - 2⁵ = 887666422129 is a prime.

It is a super-3 number, since 3×887666422161³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (887666420161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154585 + ... + 1341353.

It is an arithmetic number, because the mean of its divisors is an integer number (74317910940).

Almost surely, 2^887666422161 is an apocalyptic number.

It is an amenable number.

887666422161 is a deficient number, since it is larger than the sum of its proper divisors (301420152879).

887666422161 is a wasteful number, since it uses less digits than its factorization.

887666422161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187936.

The product of its digits is 9289728, while the sum is 57.

The spelling of 887666422161 in words is "eight hundred eighty-seven billion, six hundred sixty-six million, four hundred twenty-two thousand, one hundred sixty-one".