168345543861 has 32 divisors (see below), whose sum is σ = 272108160000. Its totient is φ = 102014645040.

The previous prime is 168345543859. The next prime is 168345543869.

It is a happy number.

168345543861 is a `hidden beast` number, since 1 + 6 + 8 + 3 + 4 + 554 + 3 + 86 + 1 = 666.

168345543861 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 168345543861 - 2¹ = 168345543859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168345543798 and 168345543807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168345543869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2641210 + ... + 2704196.

It is an arithmetic number, because the mean of its divisors is an integer number (8503380000).

Almost surely, 2^168345543861 is an apocalyptic number.

168345543861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

168345543861 is a deficient number, since it is larger than the sum of its proper divisors (103762616139).

168345543861 is a wasteful number, since it uses less digits than its factorization.

168345543861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72006 (or 72000 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The spelling of 168345543861 in words is "one hundred sixty-eight billion, three hundred forty-five million, five hundred forty-three thousand, eight hundred sixty-one".