3243190941666 has 24 divisors (see below), whose sum is σ = 7567445531100. Its totient is φ = 997904905056.

The previous prime is 3243190941593. The next prime is 3243190941673. The reversal of 3243190941666 is 6661490913423.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3132315927225 + 110875014441 = 1769835^2 + 332979^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6929894941 + ... + 6929895408.

Almost surely, 2^{3243190941666} is an apocalyptic number.

3243190941666 is an abundant number, since it is smaller than the sum of its proper divisors (4324254589434).

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

3243190941666 is a wasteful number, since it uses less digits than its factorization.

3243190941666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13859790370 (or 13859790367 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 54.

The spelling of 3243190941666 in words is "three trillion, two hundred forty-three billion, one hundred ninety million, nine hundred forty-one thousand, six hundred sixty-six".