168755678089 has 8 divisors (see below), whose sum is σ = 168946684200. Its totient is φ = 168564781056.

The previous prime is 168755678071. The next prime is 168755678093. The reversal of 168755678089 is 980876557861.

It can be written as a sum of positive squares in 4 ways, for example, as 229007689 + 168526670400 = 15133^2 + 410520^2 .

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 168755678089 - 2⁵ = 168755678057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168755672089) 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, 3293337 + ... + 3344185.

It is an arithmetic number, because the mean of its divisors is an integer number (21118335525).

Almost surely, 2^168755678089 is an apocalyptic number.

It is an amenable number.

168755678089 is a deficient number, since it is larger than the sum of its proper divisors (191006111).

168755678089 is a wasteful number, since it uses less digits than its factorization.

168755678089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54539.

The product of its (nonzero) digits is 203212800, while the sum is 70.

The spelling of 168755678089 in words is "one hundred sixty-eight billion, seven hundred fifty-five million, six hundred seventy-eight thousand, eighty-nine".