129666002022 has 24 divisors (see below), whose sum is σ = 281557777176. Its totient is φ = 43127420256.

The previous prime is 129666002009. The next prime is 129666002023. The reversal of 129666002022 is 220200666921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129666002023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7873248 + ... + 7889699.

It is an arithmetic number, because the mean of its divisors is an integer number (11731574049).

Almost surely, 2^129666002022 is an apocalyptic number.

129666002022 is an abundant number, since it is smaller than the sum of its proper divisors (151891775154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129666002022 is a wasteful number, since it uses less digits than its factorization.

129666002022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15763412 (or 15763409 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

Adding to 129666002022 its reverse (220200666921), we get a palindrome (349866668943).

The spelling of 129666002022 in words is "one hundred twenty-nine billion, six hundred sixty-six million, two thousand, twenty-two".