66712034852 has 12 divisors (see below), whose sum is σ = 116756880240. Its totient is φ = 33352926216.

The previous prime is 66712034849. The next prime is 66712034863. The reversal of 66712034852 is 25843021766.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723902 + ... + 810837.

It is an arithmetic number, because the mean of its divisors is an integer number (9729740020).

Almost surely, 2^66712034852 is an apocalyptic number.

It is an amenable number.

66712034852 is a deficient number, since it is larger than the sum of its proper divisors (50044845388).

66712034852 is a wasteful number, since it uses less digits than its factorization.

66712034852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545610 (or 1545608 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 66712034852 in words is "sixty-six billion, seven hundred twelve million, thirty-four thousand, eight hundred fifty-two".