129151109376 has 81 divisors (see below), whose sum is σ = 372424230451. Its totient is φ = 43044619776.

The previous prime is 129151109359. The next prime is 129151109407. The reversal of 129151109376 is 673901151921.

The square root of 129151109376 is 359376.

It is a perfect power (a square), and thus also a powerful number.

129151109376 is a `hidden beast` number, since 1 + 29 + 151 + 109 + 376 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17246305 + ... + 17253791.

Almost surely, 2^129151109376 is an apocalyptic number.

129151109376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

129151109376 is the 359376-th square number.

It is an amenable number.

129151109376 is an abundant number, since it is smaller than the sum of its proper divisors (243273121075).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129151109376 is an frugal number, since it uses more digits than its factorization.

129151109376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14996 (or 7492 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The spelling of 129151109376 in words is "one hundred twenty-nine billion, one hundred fifty-one million, one hundred nine thousand, three hundred seventy-six".