168446717152 has 96 divisors (see below), whose sum is σ = 392302310400. Its totient is φ = 69661552128.

The previous prime is 168446717147. The next prime is 168446717171. The reversal of 168446717152 is 251717644861.

It is a super-2 number, since 2×168446717152² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 168446717152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12849033 + ... + 12862135.

It is an arithmetic number, because the mean of its divisors is an integer number (4086482400).

Almost surely, 2^168446717152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168446717152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196151155200).

168446717152 is an abundant number, since it is smaller than the sum of its proper divisors (223855593248).

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

168446717152 is a wasteful number, since it uses less digits than its factorization.

168446717152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15128 (or 15120 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 52.

The spelling of 168446717152 in words is "one hundred sixty-eight billion, four hundred forty-six million, seven hundred seventeen thousand, one hundred fifty-two".