168453354861 has 64 divisors (see below), whose sum is σ = 284293601280. Its totient is φ = 97582320000.

The previous prime is 168453354857. The next prime is 168453354869.

It is a happy number.

168453354861 is a `hidden beast` number, since 1 + 6 + 8 + 4 + 5 + 33 + 548 + 61 = 666.

168453354861 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 168453354861 - 2² = 168453354857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168453354798 and 168453354807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168453354869) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10108386 + ... + 10125036.

It is an arithmetic number, because the mean of its divisors is an integer number (4442087520).

Almost surely, 2^168453354861 is an apocalyptic number.

168453354861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

168453354861 is a deficient number, since it is larger than the sum of its proper divisors (115840246419).

168453354861 is a wasteful number, since it uses less digits than its factorization.

168453354861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18175 (or 18169 counting only the distinct ones).

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

The spelling of 168453354861 in words is "one hundred sixty-eight billion, four hundred fifty-three million, three hundred fifty-four thousand, eight hundred sixty-one".