3666686835348 has 72 divisors (see below), whose sum is σ = 9846285321600. Its totient is φ = 1192418470080.

The previous prime is 3666686835337. The next prime is 3666686835379. The reversal of 3666686835348 is 8435386866663.

It is a happy number.

It is a super-2 number, since 2×3666686835348² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45963948 + ... + 46043651.

It is an arithmetic number, because the mean of its divisors is an integer number (136753962800).

Almost surely, 2^{3666686835348} is an apocalyptic number.

It is an amenable number.

3666686835348 is an abundant number, since it is smaller than the sum of its proper divisors (6179598486252).

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

3666686835348 is a wasteful number, since it uses less digits than its factorization.

3666686835348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92007659 (or 92007645 counting only the distinct ones).

The product of its digits is 2149908480, while the sum is 72.

The spelling of 3666686835348 in words is "three trillion, six hundred sixty-six billion, six hundred eighty-six million, eight hundred thirty-five thousand, three hundred forty-eight".