66331445761412 has 24 divisors (see below), whose sum is σ = 125014512038976. Its totient is φ = 30613227990048.

The previous prime is 66331445761397. The next prime is 66331445761457. The reversal of 66331445761412 is 21416754413366.

66331445761412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25529048 + ... + 28007055.

It is an arithmetic number, because the mean of its divisors is an integer number (5208938001624).

Almost surely, 2^{66331445761412} is an apocalyptic number.

It is an amenable number.

66331445761412 is a deficient number, since it is larger than the sum of its proper divisors (58683066277564).

66331445761412 is a wasteful number, since it uses less digits than its factorization.

66331445761412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53559947 (or 53559945 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 53.

The spelling of 66331445761412 in words is "sixty-six trillion, three hundred thirty-one billion, four hundred forty-five million, seven hundred sixty-one thousand, four hundred twelve".