168528664960 has 128 divisors (see below), whose sum is σ = 431990236800. Its totient is φ = 62642651136.

The previous prime is 168528664907. The next prime is 168528664961. The reversal of 168528664960 is 69466825861.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168528664961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 761484 + ... + 957556.

It is an arithmetic number, because the mean of its divisors is an integer number (3374923725).

Almost surely, 2^168528664960 is an apocalyptic number.

168528664960 is a gapful number since it is divisible by the number (10) 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 168528664960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215995118400).

168528664960 is an abundant number, since it is smaller than the sum of its proper divisors (263461571840).

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

168528664960 is a wasteful number, since it uses less digits than its factorization.

168528664960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196188 (or 196176 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 61.

The spelling of 168528664960 in words is "one hundred sixty-eight billion, five hundred twenty-eight million, six hundred sixty-four thousand, nine hundred sixty".