66384048366 has 16 divisors (see below), whose sum is σ = 147520107600. Its totient is φ = 22128016104.

The previous prime is 66384048361. The next prime is 66384048383.

66384048366 is a `hidden beast` number, since 6 + 63 + 8 + 40 + 483 + 66 = 666.

66384048366 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1229334229 = 66384048366 / (6 + 6 + 3 + 8 + 4 + 0 + 4 + 8 + 3 + 6 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66384048361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614667061 + ... + 614667168.

It is an arithmetic number, because the mean of its divisors is an integer number (9220006725).

Almost surely, 2^66384048366 is an apocalyptic number.

66384048366 is an abundant number, since it is smaller than the sum of its proper divisors (81136059234).

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

66384048366 is a wasteful number, since it uses less digits than its factorization.

66384048366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229334240 (or 1229334234 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 54.

The spelling of 66384048366 in words is "sixty-six billion, three hundred eighty-four million, forty-eight thousand, three hundred sixty-six".