66378096 has 80 divisors (see below), whose sum is σ = 200582400. Its totient is φ = 20958912.

The previous prime is 66378089. The next prime is 66378107. The reversal of 66378096 is 69087366.

66378096 is a `hidden beast` number, since 6 + 637 + 8 + 0 + 9 + 6 = 666.

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, 4165 + ... + 12251.

It is an arithmetic number, because the mean of its divisors is an integer number (2507280).

Almost surely, 2^66378096 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 66378096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100291200).

66378096 is an abundant number, since it is smaller than the sum of its proper divisors (134204304).

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

66378096 is a wasteful number, since it uses less digits than its factorization.

66378096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8123 (or 8111 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 66378096 is about 8147.2753727857. The cubic root of 66378096 is about 404.8942385019.

The spelling of 66378096 in words is "sixty-six million, three hundred seventy-eight thousand, ninety-six".