5643666529 has 8 divisors (see below), whose sum is σ = 5880169728. Its totient is φ = 5410566480.

The previous prime is 5643666527. The next prime is 5643666533. The reversal of 5643666529 is 9256663465.

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

It is a cyclic number.

It is not a de Polignac number, because 5643666529 - 2¹ = 5643666527 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5643666521) 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, 847402 + ... + 854035.

It is an arithmetic number, because the mean of its divisors is an integer number (735021216).

Almost surely, 2^5643666529 is an apocalyptic number.

It is an amenable number.

5643666529 is a deficient number, since it is larger than the sum of its proper divisors (236503199).

5643666529 is a wasteful number, since it uses less digits than its factorization.

5643666529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701575.

The product of its digits is 6998400, while the sum is 52.

The square root of 5643666529 is about 75124.3404563394. The cubic root of 5643666529 is about 1780.4117350148.

The spelling of 5643666529 in words is "five billion, six hundred forty-three million, six hundred sixty-six thousand, five hundred twenty-nine".