168147220815740 has 12 divisors (see below), whose sum is σ = 353109163713096. Its totient is φ = 67258888326288.

The previous prime is 168147220815731. The next prime is 168147220815751. The reversal of 168147220815740 is 47518022741861.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4203680520374 + ... + 4203680520413.

It is an arithmetic number, because the mean of its divisors is an integer number (29425763642758).

Almost surely, 2^{168147220815740} is an apocalyptic number.

168147220815740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168147220815740 is an abundant number, since it is smaller than the sum of its proper divisors (184961942897356).

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

168147220815740 is a wasteful number, since it uses less digits than its factorization.

168147220815740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8407361040796 (or 8407361040794 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 56.

The spelling of 168147220815740 in words is "one hundred sixty-eight trillion, one hundred forty-seven billion, two hundred twenty million, eight hundred fifteen thousand, seven hundred forty".