129132271296 has 84 divisors (see below), whose sum is σ = 423010687632. Its totient is φ = 36894933504.

The previous prime is 129132271277. The next prime is 129132271351. The reversal of 129132271296 is 692172231921.

129132271296 is a `hidden beast` number, since 1 + 2 + 91 + 3 + 2 + 271 + 296 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16009395 + ... + 16017458.

Almost surely, 2^129132271296 is an apocalyptic number.

129132271296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

129132271296 is an abundant number, since it is smaller than the sum of its proper divisors (293878416336).

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

129132271296 is a wasteful number, since it uses less digits than its factorization.

129132271296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32026878 (or 32026865 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The spelling of 129132271296 in words is "one hundred twenty-nine billion, one hundred thirty-two million, two hundred seventy-one thousand, two hundred ninety-six".