129815516102 has 8 divisors (see below), whose sum is σ = 203189503536. Its totient is φ = 62085681592.

The previous prime is 129815515981. The next prime is 129815516137. The reversal of 129815516102 is 201615518921.

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

It is a self number, because there is not a number n which added to its sum of digits gives 129815516102.

It is a congruent number.

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, 1411038173 + ... + 1411038264.

It is an arithmetic number, because the mean of its divisors is an integer number (25398687942).

Almost surely, 2^129815516102 is an apocalyptic number.

129815516102 is a deficient number, since it is larger than the sum of its proper divisors (73373987434).

129815516102 is a wasteful number, since it uses less digits than its factorization.

129815516102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822076462.

The product of its (nonzero) digits is 43200, while the sum is 41.

The spelling of 129815516102 in words is "one hundred twenty-nine billion, eight hundred fifteen million, five hundred sixteen thousand, one hundred two".