129166056274 has 8 divisors (see below), whose sum is σ = 193756686768. Its totient is φ = 64580494020.

The previous prime is 129166056251. The next prime is 129166056307. The reversal of 129166056274 is 472650661921.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202692 + ... + 1305679.

It is an arithmetic number, because the mean of its divisors is an integer number (24219585846).

Almost surely, 2^129166056274 is an apocalyptic number.

129166056274 is a deficient number, since it is larger than the sum of its proper divisors (64590630494).

129166056274 is a wasteful number, since it uses less digits than its factorization.

129166056274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534120.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 129166056274 in words is "one hundred twenty-nine billion, one hundred sixty-six million, fifty-six thousand, two hundred seventy-four".