168108340407740 has 24 divisors (see below), whose sum is σ = 353509134961920. Its totient is φ = 67151599000128.

The previous prime is 168108340407727. The next prime is 168108340407773. The reversal of 168108340407740 is 47704043801861.

It is a super-2 number, since 2×168108340407740² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5733557660 + ... + 5733586979.

It is an arithmetic number, because the mean of its divisors is an integer number (14729547290080).

Almost surely, 2^{168108340407740} is an apocalyptic number.

168108340407740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168108340407740 is an abundant number, since it is smaller than the sum of its proper divisors (185400794554180).

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

168108340407740 is a wasteful number, since it uses less digits than its factorization.

168108340407740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11467145381 (or 11467145379 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 53.

The spelling of 168108340407740 in words is "one hundred sixty-eight trillion, one hundred eight billion, three hundred forty million, four hundred seven thousand, seven hundred forty".