6663336333666 has 16 divisors (see below), whose sum is σ = 13458619922688. Its totient is φ = 2199120902000.

The previous prime is 6663336333653. The next prime is 6663336333751.

6663336333666 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

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, 5497801650 + ... + 5497802861.

It is an arithmetic number, because the mean of its divisors is an integer number (841163745168).

Almost surely, 2^{6663336333666} is an apocalyptic number.

6663336333666 is an abundant number, since it is smaller than the sum of its proper divisors (6795283589022).

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

6663336333666 is a wasteful number, since it uses less digits than its factorization.

6663336333666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10995604617.

The product of its digits is 204073344, while the sum is 60.

The spelling of 6663336333666 in words is "six trillion, six hundred sixty-three billion, three hundred thirty-six million, three hundred thirty-three thousand, six hundred sixty-six".