129355338345 has 8 divisors (see below), whose sum is σ = 206968541376. Its totient is φ = 68989513776.

The previous prime is 129355338341. The next prime is 129355338347. The reversal of 129355338345 is 543833553921.

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

It is not a de Polignac number, because 129355338345 - 2² = 129355338341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (129355338341) 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, 4311844597 + ... + 4311844626.

It is an arithmetic number, because the mean of its divisors is an integer number (25871067672).

Almost surely, 2^129355338345 is an apocalyptic number.

129355338345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129355338345 is a deficient number, since it is larger than the sum of its proper divisors (77613203031).

129355338345 is an equidigital number, since it uses as much as digits as its factorization.

129355338345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8623689231.

The product of its digits is 5832000, while the sum is 51.

The spelling of 129355338345 in words is "one hundred twenty-nine billion, three hundred fifty-five million, three hundred thirty-eight thousand, three hundred forty-five".