168144251457801 has 8 divisors (see below), whose sum is σ = 224355621761280. Its totient is φ = 112014524396432.

The previous prime is 168144251457701. The next prime is 168144251457817. The reversal of 168144251457801 is 108754152441861.

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 168144251457801 - 2⁷ = 168144251457673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168144251457841) 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, 20410805721 + ... + 20410813958.

It is an arithmetic number, because the mean of its divisors is an integer number (28044452720160).

Almost surely, 2^{168144251457801} is an apocalyptic number.

It is an amenable number.

168144251457801 is a deficient number, since it is larger than the sum of its proper divisors (56211370303479).

168144251457801 is a wasteful number, since it uses less digits than its factorization.

168144251457801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40821621055.

The product of its (nonzero) digits is 8601600, while the sum is 57.

The spelling of 168144251457801 in words is "one hundred sixty-eight trillion, one hundred forty-four billion, two hundred fifty-one million, four hundred fifty-seven thousand, eight hundred one".