5666120643 has 8 divisors (see below), whose sum is σ = 7658318608. Its totient is φ = 3725668224.

The previous prime is 5666120641. The next prime is 5666120683. The reversal of 5666120643 is 3460216665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5666120643 - 2¹ = 5666120641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5666120641) 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, 12936130 + ... + 12936567.

It is an arithmetic number, because the mean of its divisors is an integer number (957289826).

Almost surely, 2^5666120643 is an apocalyptic number.

5666120643 is a deficient number, since it is larger than the sum of its proper divisors (1992197965).

5666120643 is a wasteful number, since it uses less digits than its factorization.

5666120643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25872773.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 5666120643 is about 75273.6384333852. The cubic root of 5666120643 is about 1782.7698158809.

The spelling of 5666120643 in words is "five billion, six hundred sixty-six million, one hundred twenty thousand, six hundred forty-three".