3666966696663 has 8 divisors (see below), whose sum is σ = 4889301222000. Its totient is φ = 2444638317888.

The previous prime is 3666966696623. The next prime is 3666966696677.

3666966696663 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3666966696663 - 2²⁸ = 3666698261207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666966696623) 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, 106363 + ... + 2710211.

It is an arithmetic number, because the mean of its divisors is an integer number (611162652750).

Almost surely, 2^{3666966696663} is an apocalyptic number.

3666966696663 is a deficient number, since it is larger than the sum of its proper divisors (1222334525337).

3666966696663 is a wasteful number, since it uses less digits than its factorization.

3666966696663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073281.

The product of its digits is 7346640384, while the sum is 78.

The spelling of 3666966696663 in words is "three trillion, six hundred sixty-six billion, nine hundred sixty-six million, six hundred ninety-six thousand, six hundred sixty-three".