66671284366 has 8 divisors (see below), whose sum is σ = 100008526464. Its totient is φ = 33335108880.

The previous prime is 66671284363. The next prime is 66671284391. The reversal of 66671284366 is 66348217666.

66671284366 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66671284363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85870 + ... + 375121.

It is an arithmetic number, because the mean of its divisors is an integer number (12501065808).

Almost surely, 2^66671284366 is an apocalyptic number.

66671284366 is a deficient number, since it is larger than the sum of its proper divisors (33337242098).

66671284366 is a wasteful number, since it uses less digits than its factorization.

66671284366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533306.

The product of its digits is 10450944, while the sum is 55.

The spelling of 66671284366 in words is "sixty-six billion, six hundred seventy-one million, two hundred eighty-four thousand, three hundred sixty-six".