129963208066 has 8 divisors (see below), whose sum is σ = 194947303824. Its totient is φ = 64980773460.

The previous prime is 129963207949. The next prime is 129963208079. The reversal of 129963208066 is 660802369921.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196680 + ... + 546451.

It is an arithmetic number, because the mean of its divisors is an integer number (24368412978).

Almost surely, 2^129963208066 is an apocalyptic number.

129963208066 is a deficient number, since it is larger than the sum of its proper divisors (64984095758).

129963208066 is an equidigital number, since it uses as much as digits as its factorization.

129963208066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830576.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 129963208066 in words is "one hundred twenty-nine billion, nine hundred sixty-three million, two hundred eight thousand, sixty-six".