168133121453 has 8 divisors (see below), whose sum is σ = 185308858560. Its totient is φ = 151272535680.

The previous prime is 168133121417. The next prime is 168133121459. The reversal of 168133121453 is 354121331861.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 168133121453 - 2¹⁰ = 168133120429 is a prime.

It is a super-3 number, since 3×168133121453³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168133121459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78786713 + ... + 78788846.

It is an arithmetic number, because the mean of its divisors is an integer number (23163607320).

Almost surely, 2^168133121453 is an apocalyptic number.

It is an amenable number.

168133121453 is a deficient number, since it is larger than the sum of its proper divisors (17175737107).

168133121453 is a wasteful number, since it uses less digits than its factorization.

168133121453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157575667.

The product of its digits is 51840, while the sum is 38.

The spelling of 168133121453 in words is "one hundred sixty-eight billion, one hundred thirty-three million, one hundred twenty-one thousand, four hundred fifty-three".