129136656183 has 8 divisors (see below), whose sum is σ = 172197608688. Its totient is φ = 86083403904.

The previous prime is 129136656169. The next prime is 129136656217. The reversal of 129136656183 is 381656631921.

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

It is not a de Polignac number, because 129136656183 - 2⁴ = 129136656167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129136616183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1885810 + ... + 1953087.

It is an arithmetic number, because the mean of its divisors is an integer number (21524701086).

Almost surely, 2^129136656183 is an apocalyptic number.

129136656183 is a deficient number, since it is larger than the sum of its proper divisors (43060952505).

129136656183 is a wasteful number, since it uses less digits than its factorization.

129136656183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850113.

The product of its digits is 1399680, while the sum is 51.

The spelling of 129136656183 in words is "one hundred twenty-nine billion, one hundred thirty-six million, six hundred fifty-six thousand, one hundred eighty-three".