168365859072 has 36 divisors (see below), whose sum is σ = 448098720720. Its totient is φ = 56121952768.

The previous prime is 168365859049. The next prime is 168365859083. The reversal of 168365859072 is 270958563861.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 168365858997 and 168365859015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109612422 + ... + 109613957.

Almost surely, 2^168365859072 is an apocalyptic number.

168365859072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168365859072 is an abundant number, since it is smaller than the sum of its proper divisors (279732861648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168365859072 is an equidigital number, since it uses as much as digits as its factorization.

168365859072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219226398 (or 219226384 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 60.

The spelling of 168365859072 in words is "one hundred sixty-eight billion, three hundred sixty-five million, eight hundred fifty-nine thousand, seventy-two".