66087012378 has 8 divisors (see below), whose sum is σ = 132174024768. Its totient is φ = 22029004124.

The previous prime is 66087012359. The next prime is 66087012449. The reversal of 66087012378 is 87321078066.

66087012378 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.

66087012378 is an admirable number.

It is a Curzon number.

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, 5507251026 + ... + 5507251037.

It is an arithmetic number, because the mean of its divisors is an integer number (16521753096).

Almost surely, 2^66087012378 is an apocalyptic number.

66087012378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66087012378 is a wasteful number, since it uses less digits than its factorization.

66087012378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11014502068.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 66087012378 in words is "sixty-six billion, eighty-seven million, twelve thousand, three hundred seventy-eight".