68166384 has 80 divisors (see below), whose sum is σ = 206903424. Its totient is φ = 19065600.

The previous prime is 68166353. The next prime is 68166401. The reversal of 68166384 is 48366186.

It is a happy number.

It is a super-3 number, since 3×68166384³ (a number of 24 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 1899 + ... + 11829.

Almost surely, 2^68166384 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 68166384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103451712).

68166384 is an abundant number, since it is smaller than the sum of its proper divisors (138737040).

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

68166384 is a wasteful number, since it uses less digits than its factorization.

68166384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9966 (or 9960 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 68166384 is about 8256.2935994307. The cubic root of 68166384 is about 408.4981420333.

The spelling of 68166384 in words is "sixty-eight million, one hundred sixty-six thousand, three hundred eighty-four".