6643141222123 has 16 divisors (see below), whose sum is σ = 7862597822464. Its totient is φ = 5492490353280.

The previous prime is 6643141222103. The next prime is 6643141222141. The reversal of 6643141222123 is 3212221413466.

It is not a de Polignac number, because 6643141222123 - 2⁹ = 6643141221611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6643141222103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49792590 + ... + 49925827.

It is an arithmetic number, because the mean of its divisors is an integer number (491412363904).

Almost surely, 2^{6643141222123} is an apocalyptic number.

6643141222123 is a deficient number, since it is larger than the sum of its proper divisors (1219456600341).

6643141222123 is a wasteful number, since it uses less digits than its factorization.

6643141222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99718762.

The product of its digits is 82944, while the sum is 37.

Adding to 6643141222123 its reverse (3212221413466), we get a palindrome (9855362635589).

The spelling of 6643141222123 in words is "six trillion, six hundred forty-three billion, one hundred forty-one million, two hundred twenty-two thousand, one hundred twenty-three".