643143411106 has 8 divisors (see below), whose sum is σ = 1102531561920. Its totient is φ = 275632890468.

The previous prime is 643143411083. The next prime is 643143411109. The reversal of 643143411106 is 601114341346.

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

It is a super-2 number, since 2×643143411106² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (643143411109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22969407526 + ... + 22969407553.

It is an arithmetic number, because the mean of its divisors is an integer number (137816445240).

Almost surely, 2^643143411106 is an apocalyptic number.

643143411106 is a deficient number, since it is larger than the sum of its proper divisors (459388150814).

643143411106 is a wasteful number, since it uses less digits than its factorization.

643143411106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45938815088.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 643143411106 in words is "six hundred forty-three billion, one hundred forty-three million, four hundred eleven thousand, one hundred six".