129161412277 has 8 divisors (see below), whose sum is σ = 129872321600. Its totient is φ = 128451121920.

The previous prime is 129161412209. The next prime is 129161412283. The reversal of 129161412277 is 772214161921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129161412277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129161412077) 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, 266902 + ... + 574072.

It is an arithmetic number, because the mean of its divisors is an integer number (16234040200).

Almost surely, 2^129161412277 is an apocalyptic number.

It is an amenable number.

129161412277 is a deficient number, since it is larger than the sum of its proper divisors (710909323).

129161412277 is a wasteful number, since it uses less digits than its factorization.

129161412277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309483.

The product of its digits is 84672, while the sum is 43.

The spelling of 129161412277 in words is "one hundred twenty-nine billion, one hundred sixty-one million, four hundred twelve thousand, two hundred seventy-seven".