2443149666 has 24 divisors (see below), whose sum is σ = 5320099200. Its totient is φ = 810289656.

The previous prime is 2443149661. The next prime is 2443149719. The reversal of 2443149666 is 6669413442.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2443149661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 337450 + ... + 344613.

It is an arithmetic number, because the mean of its divisors is an integer number (221670800).

Almost surely, 2^2443149666 is an apocalyptic number.

2443149666 is an abundant number, since it is smaller than the sum of its proper divisors (2876949534).

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

2443149666 is a wasteful number, since it uses less digits than its factorization.

2443149666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682270 (or 682267 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 2443149666 is about 49428.2274211811. The cubic root of 2443149666 is about 1346.8421234834.

The spelling of 2443149666 in words is "two billion, four hundred forty-three million, one hundred forty-nine thousand, six hundred sixty-six".