168885588861 has 12 divisors (see below), whose sum is σ = 266122746240. Its totient is φ = 102354902280.

The previous prime is 168885588827. The next prime is 168885588863.

168885588861 is a `hidden beast` number, since 1 + 6 + 8 + 8 + 8 + 558 + 8 + 8 + 61 = 666.

168885588861 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 168885588861 - 2⁹ = 168885588349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 168885588861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168885588863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 852957421 + ... + 852957618.

It is an arithmetic number, because the mean of its divisors is an integer number (22176895520).

Almost surely, 2^168885588861 is an apocalyptic number.

168885588861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

168885588861 is a deficient number, since it is larger than the sum of its proper divisors (97237157379).

168885588861 is a wasteful number, since it uses less digits than its factorization.

168885588861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705915056 (or 1705915053 counting only the distinct ones).

The product of its digits is 235929600, while the sum is 72.

The spelling of 168885588861 in words is "one hundred sixty-eight billion, eight hundred eighty-five million, five hundred eighty-eight thousand, eight hundred sixty-one".