120907920421584 has 30 divisors (see below), whose sum is σ = 338374249513586. Its totient is φ = 40302640140480.

The previous prime is 120907920421559. The next prime is 120907920421597. The reversal of 120907920421584 is 485124029709021.

120907920421584 is a `hidden beast` number, since 1 + 209 + 0 + 7 + 9 + 2 + 0 + 421 + 5 + 8 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 71190191255184 + 49717729166400 = 8437428^2 + 7051080^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120907920421584.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 419819167987 + ... + 419819168274.

Almost surely, 2^{120907920421584} is an apocalyptic number.

It is an amenable number.

120907920421584 is an abundant number, since it is smaller than the sum of its proper divisors (217466329092002).

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

120907920421584 is a wasteful number, since it uses less digits than its factorization.

120907920421584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839638336275 (or 839638336266 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 120907920421584 in words is "one hundred twenty trillion, nine hundred seven billion, nine hundred twenty million, four hundred twenty-one thousand, five hundred eighty-four".