168687078797052 has 384 divisors, whose sum is σ = 488082309120000. Its totient is φ = 50160298132224.

The previous prime is 168687078796921. The next prime is 168687078797053. The reversal of 168687078797052 is 250797870786861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168687078797053) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 791409349 + ... + 791622467.

It is an arithmetic number, because the mean of its divisors is an integer number (1271047680000).

Almost surely, 2^{168687078797052} is an apocalyptic number.

168687078797052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168687078797052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244041154560000).

168687078797052 is an abundant number, since it is smaller than the sum of its proper divisors (319395230322948).

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

168687078797052 is a wasteful number, since it uses less digits than its factorization.

168687078797052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213510 (or 213502 counting only the distinct ones).

The product of its (nonzero) digits is 3982970880, while the sum is 81.

The spelling of 168687078797052 in words is "one hundred sixty-eight trillion, six hundred eighty-seven billion, seventy-eight million, seven hundred ninety-seven thousand, fifty-two".