168752257861 has 16 divisors (see below), whose sum is σ = 185365440000. Its totient is φ = 152351496000.

The previous prime is 168752257829. The next prime is 168752257879.

168752257861 is nontrivially palindromic in base 10.

168752257861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168752257861 - 2⁵ = 168752257829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168752257796 and 168752257805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168752257811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16222540 + ... + 16232938.

It is an arithmetic number, because the mean of its divisors is an integer number (11585340000).

Almost surely, 2^168752257861 is an apocalyptic number.

168752257861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

168752257861 is a deficient number, since it is larger than the sum of its proper divisors (16613182139).

168752257861 is a wasteful number, since it uses less digits than its factorization.

168752257861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20460.

The product of its digits is 11289600, while the sum is 58.

The spelling of 168752257861 in words is "one hundred sixty-eight billion, seven hundred fifty-two million, two hundred fifty-seven thousand, eight hundred sixty-one".