120729166450 has 12 divisors (see below), whose sum is σ = 224556249690. Its totient is φ = 48291666560.

The previous prime is 120729166427. The next prime is 120729166451. The reversal of 120729166450 is 54661927021.

It can be written as a sum of positive squares in 3 ways, for example, as 77084524881 + 43644641569 = 277641^2 + 208913^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120729166397 and 120729166406.

It is not an unprimeable number, because it can be changed into a prime (120729166451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1207291615 + ... + 1207291714.

Almost surely, 2^120729166450 is an apocalyptic number.

120729166450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120729166450 is a deficient number, since it is larger than the sum of its proper divisors (103827083240).

120729166450 is a wasteful number, since it uses less digits than its factorization.

120729166450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414583341 (or 2414583336 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 120729166450 in words is "one hundred twenty billion, seven hundred twenty-nine million, one hundred sixty-six thousand, four hundred fifty".