129119006605 has 8 divisors (see below), whose sum is σ = 154951638264. Its totient is φ = 103289318400.

The previous prime is 129119006551. The next prime is 129119006623. The reversal of 129119006605 is 506600911921.

It can be written as a sum of positive squares in 4 ways, for example, as 41605392676 + 87513613929 = 203974^2 + 295827^2 .

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

It is not a de Polignac number, because 129119006605 - 2¹³ = 129118998413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638176 + ... + 815785.

It is an arithmetic number, because the mean of its divisors is an integer number (19368954783).

Almost surely, 2^129119006605 is an apocalyptic number.

It is an amenable number.

129119006605 is a deficient number, since it is larger than the sum of its proper divisors (25832631659).

129119006605 is a wasteful number, since it uses less digits than its factorization.

129119006605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471727.

The product of its (nonzero) digits is 29160, while the sum is 40.

The spelling of 129119006605 in words is "one hundred twenty-nine billion, one hundred nineteen million, six thousand, six hundred five".