3666173718012 has 96 divisors (see below), whose sum is σ = 9419532777984. Its totient is φ = 1102916217600.

The previous prime is 3666173717963. The next prime is 3666173718019. The reversal of 3666173718012 is 2108173716663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666173718019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435687 + ... + 2742657.

It is an arithmetic number, because the mean of its divisors is an integer number (98120133104).

Almost surely, 2^{3666173718012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3666173718012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4709766388992).

3666173718012 is an abundant number, since it is smaller than the sum of its proper divisors (5753359059972).

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

3666173718012 is a wasteful number, since it uses less digits than its factorization.

3666173718012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307219 (or 2307217 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 3666173718012 in words is "three trillion, six hundred sixty-six billion, one hundred seventy-three million, seven hundred eighteen thousand, twelve".