3666681467788 has 24 divisors (see below), whose sum is σ = 7013311046784. Its totient is φ = 1669835961600.

The previous prime is 3666681467719. The next prime is 3666681467821. The reversal of 3666681467788 is 8877641866663.

It is a happy number.

It is a super-2 number, since 2×3666681467788² (a number of 26 digits) contains 22 as substring.

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, 869704123 + ... + 869708338.

It is an arithmetic number, because the mean of its divisors is an integer number (292221293616).

Almost surely, 2^{3666681467788} is an apocalyptic number.

It is an amenable number.

3666681467788 is a deficient number, since it is larger than the sum of its proper divisors (3346629578996).

3666681467788 is a wasteful number, since it uses less digits than its factorization.

3666681467788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739412513 (or 1739412511 counting only the distinct ones).

The product of its digits is 2341011456, while the sum is 76.

The spelling of 3666681467788 in words is "three trillion, six hundred sixty-six billion, six hundred eighty-one million, four hundred sixty-seven thousand, seven hundred eighty-eight".