168740637018108 has 24 divisors (see below), whose sum is σ = 396602081170512. Its totient is φ = 55836317844864.

The previous prime is 168740637018101. The next prime is 168740637018167. The reversal of 168740637018108 is 801810736047861.

It is a super-4 number, since 4×168740637018108⁴ (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168740637018101) 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, 51320143435 + ... + 51320146722.

It is an arithmetic number, because the mean of its divisors is an integer number (16525086715438).

Almost surely, 2^{168740637018108} is an apocalyptic number.

It is an amenable number.

168740637018108 is an abundant number, since it is smaller than the sum of its proper divisors (227861444152404).

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

168740637018108 is a wasteful number, since it uses less digits than its factorization.

168740637018108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102640290301 (or 102640290299 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 60.

The spelling of 168740637018108 in words is "one hundred sixty-eight trillion, seven hundred forty billion, six hundred thirty-seven million, eighteen thousand, one hundred eight".