168748777152 has 168 divisors, whose sum is σ = 512641205856. Its totient is φ = 52889001984.

The previous prime is 168748777147. The next prime is 168748777159. The reversal of 168748777152 is 251777847861.

168748777152 is a `hidden beast` number, since 1 + 6 + 87 + 487 + 7 + 71 + 5 + 2 = 666.

It is a super-2 number, since 2×168748777152² (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 168748777152.

It is not an unprimeable number, because it can be changed into a prime (168748777159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10694773 + ... + 10710539.

Almost surely, 2^168748777152 is an apocalyptic number.

168748777152 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 168748777152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256320602928).

168748777152 is an abundant number, since it is smaller than the sum of its proper divisors (343892428704).

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

168748777152 is a wasteful number, since it uses less digits than its factorization.

168748777152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16895 (or 16882 counting only the distinct ones).

The product of its digits is 36879360, while the sum is 63.

The spelling of 168748777152 in words is "one hundred sixty-eight billion, seven hundred forty-eight million, seven hundred seventy-seven thousand, one hundred fifty-two".