12169255129 has 8 divisors (see below), whose sum is σ = 12887395488. Its totient is φ = 11451370560.

The previous prime is 12169255121. The next prime is 12169255151. The reversal of 12169255129 is 92155296121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12169255129 - 2³ = 12169255121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12169255121) 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, 38734 + ... + 160744.

It is an arithmetic number, because the mean of its divisors is an integer number (1610924436).

Almost surely, 2^12169255129 is an apocalyptic number.

It is an amenable number.

12169255129 is a deficient number, since it is larger than the sum of its proper divisors (718140359).

12169255129 is a wasteful number, since it uses less digits than its factorization.

12169255129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127895.

The product of its digits is 97200, while the sum is 43.

The spelling of 12169255129 in words is "twelve billion, one hundred sixty-nine million, two hundred fifty-five thousand, one hundred twenty-nine".