66334643366 has 16 divisors (see below), whose sum is σ = 100941760656. Its totient is φ = 32690537376.

The previous prime is 66334643357. The next prime is 66334643387.

66334643366 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744581 + ... + 828896.

It is an arithmetic number, because the mean of its divisors is an integer number (6308860041).

Almost surely, 2^66334643366 is an apocalyptic number.

66334643366 is a deficient number, since it is larger than the sum of its proper divisors (34607117290).

66334643366 is a wasteful number, since it uses less digits than its factorization.

66334643366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573783.

The product of its digits is 10077696, while the sum is 50.

The spelling of 66334643366 in words is "sixty-six billion, three hundred thirty-four million, six hundred forty-three thousand, three hundred sixty-six".