5566641021123 has 24 divisors (see below), whose sum is σ = 9185192967168. Its totient is φ = 2936250207072.

The previous prime is 5566641021083. The next prime is 5566641021157. The reversal of 5566641021123 is 3211201466655.

It is not a de Polignac number, because 5566641021123 - 2⁸ = 5566641020867 is a prime.

It is a super-3 number, since 3×5566641021123³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (5566641001123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 784251315 + ... + 784258412.

It is an arithmetic number, because the mean of its divisors is an integer number (382716373632).

Almost surely, 2^{5566641021123} is an apocalyptic number.

5566641021123 is a deficient number, since it is larger than the sum of its proper divisors (3618551946045).

5566641021123 is a wasteful number, since it uses less digits than its factorization.

5566641021123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568509763 (or 1568509750 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

Adding to 5566641021123 its reverse (3211201466655), we get a palindrome (8777842487778).

The spelling of 5566641021123 in words is "five trillion, five hundred sixty-six billion, six hundred forty-one million, twenty-one thousand, one hundred twenty-three".