68017716 has 144 divisors (see below), whose sum is σ = 198132480. Its totient is φ = 19514880.

The previous prime is 68017711. The next prime is 68017723. The reversal of 68017716 is 61771086.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68017711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 764200 + ... + 764288.

It is an arithmetic number, because the mean of its divisors is an integer number (1375920).

Almost surely, 2^68017716 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 68017716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99066240).

68017716 is an abundant number, since it is smaller than the sum of its proper divisors (130114764).

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

68017716 is a wasteful number, since it uses less digits than its factorization.

68017716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 68017716 is about 8247.2853715632. The cubic root of 68017716 is about 408.2009534873.

The spelling of 68017716 in words is "sixty-eight million, seventeen thousand, seven hundred sixteen".