129983582366 has 64 divisors (see below), whose sum is σ = 224087648256. Its totient is φ = 56002627200.

The previous prime is 129983582353. The next prime is 129983582381. The reversal of 129983582366 is 663285389921.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 129983582299 and 129983582308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23600585 + ... + 23606091.

It is an arithmetic number, because the mean of its divisors is an integer number (3501369504).

Almost surely, 2^129983582366 is an apocalyptic number.

129983582366 is a deficient number, since it is larger than the sum of its proper divisors (94104065890).

129983582366 is a wasteful number, since it uses less digits than its factorization.

129983582366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6257.

The product of its digits is 33592320, while the sum is 62.

The spelling of 129983582366 in words is "one hundred twenty-nine billion, nine hundred eighty-three million, five hundred eighty-two thousand, three hundred sixty-six".