5643041666 has 16 divisors (see below), whose sum is σ = 8610814080. Its totient is φ = 2772801360.

The previous prime is 5643041641. The next prime is 5643041669. The reversal of 5643041666 is 6661403465.

It is not an unprimeable number, because it can be changed into a prime (5643041669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498380 + ... + 509576.

It is an arithmetic number, because the mean of its divisors is an integer number (538175880).

Almost surely, 2^5643041666 is an apocalyptic number.

5643041666 is a deficient number, since it is larger than the sum of its proper divisors (2967772414).

5643041666 is a wasteful number, since it uses less digits than its factorization.

5643041666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15529.

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 5643041666 is about 75120.1814827414. The cubic root of 5643041666 is about 1780.3460239224.

The spelling of 5643041666 in words is "five billion, six hundred forty-three million, forty-one thousand, six hundred sixty-six".