168718704 has 160 divisors (see below), whose sum is σ = 548536320. Its totient is φ = 43411200.

The previous prime is 168718703. The next prime is 168718721. The reversal of 168718704 is 407817861.

It is a happy number.

It is a super-3 number, since 3×168718704³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168718703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 705817 + ... + 706055.

It is an arithmetic number, because the mean of its divisors is an integer number (3428352).

Almost surely, 2^168718704 is an apocalyptic number.

168718704 is a gapful number since it is divisible by the number (14) 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 168718704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274268160).

168718704 is an abundant number, since it is smaller than the sum of its proper divisors (379817616).

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

168718704 is a wasteful number, since it uses less digits than its factorization.

168718704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 168718704 is about 12989.1764173099. The cubic root of 168718704 is about 552.5705610692.

The spelling of 168718704 in words is "one hundred sixty-eight million, seven hundred eighteen thousand, seven hundred four".