168028755264 has 112 divisors (see below), whose sum is σ = 495467477440. Its totient is φ = 55840181760.

The previous prime is 168028755247. The next prime is 168028755289. The reversal of 168028755264 is 462557820861.

168028755264 is a `hidden beast` number, since 1 + 6 + 8 + 0 + 2 + 87 + 552 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 168028755264.

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, 425082 + ... + 718854.

Almost surely, 2^168028755264 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 168028755264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247733738720).

168028755264 is an abundant number, since it is smaller than the sum of its proper divisors (327438722176).

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

168028755264 is a wasteful number, since it uses less digits than its factorization.

168028755264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294125 (or 294109 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 168028755264 in words is "one hundred sixty-eight billion, twenty-eight million, seven hundred fifty-five thousand, two hundred sixty-four".