66334443366 has 32 divisors (see below), whose sum is σ = 134294853888. Its totient is φ = 21841570080.

The previous prime is 66334443361. The next prime is 66334443389.

66334443366 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×66334443366² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66334443361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110161 + ... + 380531.

It is an arithmetic number, because the mean of its divisors is an integer number (4196714184).

Almost surely, 2^66334443366 is an apocalyptic number.

66334443366 is an abundant number, since it is smaller than the sum of its proper divisors (67960410522).

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

66334443366 is a wasteful number, since it uses less digits than its factorization.

66334443366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270876.

The product of its digits is 6718464, while the sum is 48.

The spelling of 66334443366 in words is "sixty-six billion, three hundred thirty-four million, four hundred forty-three thousand, three hundred sixty-six".