66715378282 has 8 divisors (see below), whose sum is σ = 114369219936. Its totient is φ = 28592304972.

The previous prime is 66715378277. The next prime is 66715378313. The reversal of 66715378282 is 28287351766.

66715378282 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2382692068 + ... + 2382692095.

It is an arithmetic number, because the mean of its divisors is an integer number (14296152492).

Almost surely, 2^66715378282 is an apocalyptic number.

66715378282 is a deficient number, since it is larger than the sum of its proper divisors (47653841654).

66715378282 is a wasteful number, since it uses less digits than its factorization.

66715378282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4765384172.

The product of its digits is 6773760, while the sum is 55.

The spelling of 66715378282 in words is "sixty-six billion, seven hundred fifteen million, three hundred seventy-eight thousand, two hundred eighty-two".