5821606666443 has 8 divisors (see below), whose sum is σ = 7762403174400. Its totient is φ = 3880940634728.

The previous prime is 5821606666441. The next prime is 5821606666481. The reversal of 5821606666443 is 3446666061285.

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 5821606666443 - 2¹ = 5821606666441 is a prime.

It is a super-2 number, since 2×5821606666443² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5821606666441) 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, 32514903 + ... + 32693456.

It is an arithmetic number, because the mean of its divisors is an integer number (970300396800).

Almost surely, 2^{5821606666443} is an apocalyptic number.

5821606666443 is a deficient number, since it is larger than the sum of its proper divisors (1940796507957).

5821606666443 is a wasteful number, since it uses less digits than its factorization.

5821606666443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65238121.

The product of its (nonzero) digits is 29859840, while the sum is 57.

The spelling of 5821606666443 in words is "five trillion, eight hundred twenty-one billion, six hundred six million, six hundred sixty-six thousand, four hundred forty-three".