129163247795 has 8 divisors (see below), whose sum is σ = 155127145680. Its totient is φ = 103243099360.

The previous prime is 129163247791. The next prime is 129163247827. The reversal of 129163247795 is 597742361921.

It is a happy number.

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

It is not a de Polignac number, because 129163247795 - 2² = 129163247791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129163247795.

It is not an unprimeable number, because it can be changed into a prime (129163247791) 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, 10930865 + ... + 10942674.

It is an arithmetic number, because the mean of its divisors is an integer number (19390893210).

Almost surely, 2^129163247795 is an apocalyptic number.

129163247795 is a deficient number, since it is larger than the sum of its proper divisors (25963897885).

129163247795 is a wasteful number, since it uses less digits than its factorization.

129163247795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21874725.

The product of its digits is 5715360, while the sum is 56.

The spelling of 129163247795 in words is "one hundred twenty-nine billion, one hundred sixty-three million, two hundred forty-seven thousand, seven hundred ninety-five".