66284875000 has 56 divisors (see below), whose sum is σ = 155353480200. Its totient is φ = 26513900000.

The previous prime is 66284874979. The next prime is 66284875009. The reversal of 66284875000 is 57848266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66284875009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 140140 + ... + 390139.

Almost surely, 2^66284875000 is an apocalyptic number.

It is an amenable number.

66284875000 is an abundant number, since it is smaller than the sum of its proper divisors (89068605200).

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

66284875000 is an frugal number, since it uses more digits than its factorization.

66284875000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530315 (or 530286 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 66284875000 in words is "sixty-six billion, two hundred eighty-four million, eight hundred seventy-five thousand".