4121244666 has 288 divisors, whose sum is σ = 12121574400. Its totient is φ = 997738560.

The previous prime is 4121244653. The next prime is 4121244689. The reversal of 4121244666 is 6664421214.

It is a self number, because there is not a number n which added to its sum of digits gives 4121244666.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 14562561 + ... + 14562843.

It is an arithmetic number, because the mean of its divisors is an integer number (42088800).

Almost surely, 2^4121244666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4121244666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6060787200).

4121244666 is an abundant number, since it is smaller than the sum of its proper divisors (8000329734).

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

4121244666 is a wasteful number, since it uses less digits than its factorization.

4121244666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 404 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 4121244666 is about 64196.9210009327. The cubic root of 4121244666 is about 1603.2803359120.

The spelling of 4121244666 in words is "four billion, one hundred twenty-one million, two hundred forty-four thousand, six hundred sixty-six".